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Intel P II Celeron
  Intel Celeron 266 MHz, Engineering Sample
  Intel Celeron 266 MHz
  Intel Celeron 300 MHz
  Intel Celeron 333 MHz
  Intel Celeron 366 MHz
  Intel Celeron FV524RX366
  Intel Celeron FV524RX400
  Intel Celeron FV524RX433
  Intel Celeron FV524RX466
  Intel Celeron FV524RX500
  Intel Celeron FV524RX533
  Intel Celeron 400 MHz MMC-2, 128 KB on-die cache
  Intel Mobile Celeron KP 400/128
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The Intel Celeron Processor
The Celeron family is a line of budget x86 processors based on Pentium P6 designs. It is marketed by Intel as a second line to complement their more expensive but higher-performance Pentium CPUs. The first Celeron was introduced in April 1998 and based on the Pentium II. Later versions are based on the Pentium III and Pentium 4 designs.
 
The Celeron product concept was introduced by Intel in response to the company's loss of low-end market share, in particular to Cyrix's 6x86 and AMD's K6, but also to other competers such as the IDT Winchip. Intel's venerable Pentium MMX was no longer performance competitive and although a faster Pentium MMX would be cheap to make and technically straightforward, Intel preferred to move away from the industry standard Socket 7 platform (for which competitors made drop-in replacement CPUs) and produced a budget part that was pin-compatible with their high-end Pentium II product (Slot 1). For both technical and legal reasons, competitors had difficulty making Slot 1 parts.
 
References: Intel Celeron Processor Home
Intel Celeron 266 MHz, Engineering Sample
Intel Celeron 266 MHz, Engineering Sample Top Side L806002Q-0323
Intel Celeron 266 MHz, Engineering Sample Back Side CONFIDENTIAL
266/66 Q525 ES A4
This is an engineering sample of the first Celeron version. It was made in February 1998, some weeks before the official introduction of the Celeron on April 15th, 1998.
 
 
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Core Frequency:266 MHz
Board Frequency:66 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:7,500,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:April 15, 1998
Manufactured:week 06/1998
L1 Cache:16+16 KB
CPU Code:Celeron Covington
Intel S-Spec: Q525
Package Type:SEPP-242
Socket: Slot 1
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Intel Celeron 266 MHz
Intel Celeron 266 MHz Top Side L8141922-0433
Intel Celeron 266 MHz Back Side 08160079-SL2TR
266/66 COSTA RICA
The first Celeron (codenamed Covington) is essentially a 266MHz Pentium II manufactured without any secondary cache at all. Although clocked at 266 or 300MHz (substantially higher than the old Pentium MMX), the cacheless Celerons are a good deal slower than the parts they were designed to replace. Substantial numbers were sold on first release, largely on the strength of the Intel name, but the Celeron quickly achieved a poor reputation both in the trade press and among computer professionals. Many people referred to it unkindly but accurately enough as the Slugeron, Celery or Deceleron. The initial market interest faded rapidly in the face of its poor performance and with sales at a very low level, Intel felt obliged to develop a substantially faster replacement as soon as possible.
 
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Core Frequency:266 MHz
Board Frequency:66 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:7,500,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:April 15, 1998
Manufactured:week 14/1998
Made in:Costa Rica
L1 Cache:16+16 KB
CPU Code:Celeron Covington
Intel S-Spec: SL2TR
Package Type:SEPP-242
Socket: Slot 1
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Intel Celeron 300 MHz
Intel Celeron 300 MHz Top Side L8220306-0205
Intel Celeron 300 MHz Back Side 8240300- SL2X8
300/66 COSTA RICA
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Core Frequency:300 MHz
Board Frequency:66 MHz
Clock Multiplier:4.5
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:7,500,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:August 24, 1998
Manufactured:week 22/1998
Made in:Costa Rica
L1 Cache:16+16 KB
CPU Code:Celeron Covington
Intel S-Spec: SL2X8
Package Type:SEPP-242
Socket: Slot 1
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Intel Celeron 333 MHz
Intel Celeron 333 MHz Top Side 79200082-0579
Intel Celeron 333 MHz Back Side 09210489-SL2WN
333/66 COSTA RICA
Intel was well aware of the poor reputation of the original Celeron and determined not to make the same mistake twice, with the result that the new Mendocino core Celeron was a good performer from the outset. Indeed, most industry analysts regarded the first Mendocino-based Celerons as too successful - performance was sufficiently high to not only compete strongly with rival parts, but also to attract buyers away from Intel's high-profit flagship, the Pentium II.
 
The key to the new Celeron's performance is cache. Where the old model had no secondary cache at all, the new part includes 128KB of L2 cache as part of the chip itself. Otherwise, it is identical. With a total of 19.2 million transistors (including cache) on a single chip, the Mendocino Celeron was difficult and expensive to manufacture, but Intel managed a flawless execution of an ambitious project.
 
The first Mendocino-core Celeron was clocked at a then-modest 300MHz but was almost twice as fast as the old cacheless Celeron at the same clockspeed. To distinguish it from the old model, Intel called it the 300A. Although the other Mendocino Celerons (this 333MHz part, for example) did not have an A appended, some people call all Mendocino processors Celeron-A regardless of speed.
 
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Core Frequency:333 MHz
Board Frequency:66 MHz
Clock Multiplier:5.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,200,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:August 24, 1998
Manufactured:week 20/1999
Made in:Costa Rica
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL2WN
Package Type:SEPP-242
Socket: Slot 1
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Intel Celeron 366 MHz
Intel Celeron 366 MHz Top Side 75050255-0519
Intel Celeron 366 MHz Back Side 09090419-SL376
366/66 COSTA RICA
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Core Frequency:366 MHz
Board Frequency:66 MHz
Clock Multiplier:5.5
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,200,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:January 4, 1999
Manufactured:week 09/1999
Made in:Costa Rica
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL376
Package Type:SEPP-242
Socket: Slot 1
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Intel Celeron FV524RX366
Intel Celeron FV524RX366 Top Side
Intel Celeron FV524RX366 Back Side
FV524RX366
128 SL36C
MALAY
L8481496-0312
(M)(C)'98
The Mendocino Celerons also introduced new packaging. When the Mendocinos debuted they came in both a Slot 1 and Socket 370 PPGA package. The Slot 1 form had been designed to accommodate the off-chip cache of the Pentium II and had mounting problems with motherboards. Because all Celerons are a single-chip design, however, there was no reason to retain the slot packaging for L2 cache storage, and Intel discontinued the Slot 1 variant: beginning with the 466 MHz part, only the PPGA Socket 370 form was offered. (Third-party manufacturers made motherboard slot-to-socket adaptors (nicknamed Slockets) available for a few dollars, which allowed, for example, a Celeron 500 to be fitted to a Slot 1 motherboard.)
 
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Core Frequency:366 MHz
Board Frequency:66 MHz
Clock Multiplier:5.5
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,000,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:January 4, 1999
Manufactured:week 48/1998
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL36C
Package Type:Plastic
PGA-370
Socket: 370
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Intel Celeron FV524RX400
Intel Celeron FV524RX400 Top Side
Intel Celeron FV524RX400 Back Side
FV524RX40
128 SL3A2
MALAY
79380047-0293
(M)(C)'98
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Core Frequency:400 MHz
Board Frequency:66 MHz
Clock Multiplier:6.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,000,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:January 4, 1999
Manufactured:week 38/1999
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL3A2
Package Type:Plastic
PGA-370
Socket: 370
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Intel Celeron FV524RX433
Intel Celeron FV524RX433 Top Side
Intel Celeron FV524RX433 Back Side
FV524RX433
128 SL3BA
MALAY
L9471180-0373
(M)(C)'98
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Core Frequency:433 MHz
Board Frequency:66 MHz
Clock Multiplier:6.5
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,000,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:March 22, 1999
Manufactured:week 47/1999
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL3BA
Package Type:Plastic
PGA-370
Socket: 370
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Intel Celeron FV524RX466
Intel Celeron FV524RX466 Top Side
Intel Celeron FV524RX466 Back Side
FV524RX466
128 SL3EH
MALAY
L9420345-1093
(M)(C)'98
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Core Frequency:466 MHz
Board Frequency:66 MHz
Clock Multiplier:7.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,000,000
Circuit Size:0.25
Voltage:2.0 V
Introduced:April 26, 1999
Manufactured:week 47/1999
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL3EH
Package Type:Plastic
PGA-370
Socket: 370
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Intel Celeron FV524RX500
Intel Celeron FV524RX500 Top Side
Intel Celeron FV524RX500 Back Side
FV524RX500
128 SL3FY
MALAY
L9340187-1568
(M)(C)'98
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Core Frequency:500 MHz
Board Frequency:66 MHz
Clock Multiplier:7.5
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,000,000
Circuit Size:0.18
Voltage:2.0 V
Introduced:August 2, 1999
Manufactured:week 34/1999
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL3FY
Package Type:Plastic
PGA-370
Socket: 370
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Intel Celeron FV524RX533
Intel Celeron FV524RX533 Top Side
Intel Celeron FV524RX533 Back Side
FV524RX533
128 SL3PZ
MALAY
L0260155-0936
(M)(C)'98
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Core Frequency:533 MHz
Board Frequency:66 MHz
Clock Multiplier:8.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:19,000,000
Circuit Size:0.18
Voltage:2.0 V
Introduced:August 2, 1999
Manufactured:week 26/2000
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Mendocino
Intel S-Spec: SL3PZ
Package Type:Plastic
PGA-370
Socket: 370
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Intel Celeron 400 MHz MMC-2, 128 KB on-die cache
Intel Celeron 400 MHz MMC-2, 128 KB on-die cache Top Side
L926A344 SL3L4
Intel Celeron 400 MHz MMC-2, 128 KB on-die cache Back Side
PMI40001001AA
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Core Frequency:400 MHz
Board Frequency:66 MHz
Clock Multiplier:6.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:18,900,000
Circuit Size:0.25
Core / I/O Voltage:1.55 / 3.3 V
Introduced:June 14, 1999
Manufactured:week 26/1999
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:Celeron Dixon
PMI40001001AA
Intel S-Spec: SL3L4
Package Type:MMC-2
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Intel Mobile Celeron KP 400/128
Intel Mobile Celeron KP 400/128 Top Side
L933A244 SL3GR
KP 400/128
INTEL(M)(C)'99
Intel Mobile Celeron KP 400/128 Back Side
To reduce costs and provide a more easy way for processor upgrades, the mobile modules were superseded by just the processors packed in small packages. The BGA (Ball Grid Array) was introduced for mobile CPUs and in low-cost notebooks these BGA processors were soldered directly on the mainboard. To make a notebook upgradeable, the BGA processors had to be mounted on adaptors to fit into standardized micro-sockets on notebook mainboards. This CPUs use a BGA package and is soldered on a small PCB with pins to fit into a standard notebook socket. The complete package is called Micro-PGA1 and has 615 pins (243 of them are not connected).
 
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Core Frequency:400 MHz
Board Frequency:66 MHz
Clock Multiplier:6.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:28,100,000
Circuit Size:0.25
Voltage:1.6 V
Introduced:June 14, 1999
Manufactured:week 33/1999
L1 Cache:16+16 KB
L2 Cache:128 KB
CPU Code:KP80524KX400128
Intel S-Spec: SL3GR
Package Type:Plastic
Micro-PGA1-615
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