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Linecards
Note: All speeds are not available in all package types.
Download a print-friendly version of the Intel® MCS51 linecards.
| 80C51RA |
ROM/
EPROM
(Bytes) |
Register RAM
(Bytes) |
Timer/
Counters |
Serial
Port |
Analog
Input
Channels
|
I/O
Pins |
Speed
(MHz) |
Process / Package |
Security |
Temp |
| ROMless |
512 |
3 |
1 |
0 |
32 |
12,16,20,24 |
CHMOS /
N,P,S |
N/A |
C,E |
| Key Features: Expanded RAM, Programmable Clock-Out, H/W WDT |
| 87C51RA ROM |
ROM/
EPROM
(Bytes) |
Register RAM
(Bytes) |
Timer/
Counters |
Serial
Port |
Analog
Input
Channels
|
I/O
Pins |
Speed
(MHz) |
Process / Package |
Security |
Temp |
| 8K ROM |
512 |
3 |
1 |
0 |
32 |
12,16,20,24 |
CHMOS /
N,P,S |
L1 |
C,E |
| Key Features: Expanded RAM, Programmable Clock-Out, H/W WDT |
| 87C51RA |
ROM/
EPROM
(Bytes) |
Register RAM
(Bytes) |
Timer/
Counters |
Serial
Port |
Analog
Input
Channels
|
I/O
Pins |
Speed
(MHz) |
Process / Package |
Security |
Temp |
| 8K OTP |
512 |
3 |
1 |
0 |
32 |
12,16,20,24 |
CHMOS /
N,P,S |
L3 |
C,E |
| Key Features: Expanded RAM, Programmable Clock-Out, H/W WDT |
| 87C51RB ROM |
ROM/
EPROM
(Bytes) |
Register RAM
(Bytes) |
Timer/
Counters |
Serial
Port |
Analog
Input
Channels
|
I/O
Pins |
Speed
(MHz) |
Process / Package |
Security |
Temp |
| 16K ROM |
512 |
3 |
1 |
0 |
32 |
12,16,20,24 |
CHMOS /
N,P,S |
L1 |
C,E |
| Key Features: Expanded RAM, Programmable Clock-Out, H/W WDT |
| 87C51RB |
ROM/
EPROM
(Bytes) |
Register RAM
(Bytes) |
Timer/
Counters |
Serial
Port |
Analog
Input
Channels
|
I/O
Pins |
Speed
(MHz) |
Process / Package |
Security |
Temp |
| 16K OTP |
512 |
3 |
1 |
0 |
32 |
12,16,20,24 |
CHMOS/
N,P,S |
L3 |
C,E |
| Key Features: Expanded RAM, Programmable Clock-Out, H/W WDT |
| 87C51RC ROM |
ROM/
EPROM
(Bytes) |
Register RAM
(Bytes) |
Timer/
Counters |
Serial
Port |
Analog
Input
Channels
|
I/O
Pins |
Speed
(MHz) |
Process / Package |
Security |
Temp |
| 32K ROM |
512 |
3 |
1 |
0 |
32 |
12,16,20,24 |
CHMOS/
N,P,S |
L1 |
C,E |
| Key Features: Expanded RAM, Programmable Clock-Out, H/W WDT |
| 87C51RC |
ROM/
EPROM
(Bytes) |
Register RAM
(Bytes) |
Timer/
Counters |
Serial
Port |
Analog
Input
Channels
|
I/O
Pins |
Speed
(MHz) |
Process / Package |
Security |
Temp |
| 32K OTP |
512 |
3 |
1 |
0 |
32 |
12,16,20,24 |
CHMOS/
N,P,S |
L3 |
C,E |
| Key Features: Expanded RAM, Programmable Clock-Out, H/W WDT |
Package Options
D = 40LD CerDIP
Ku = 100LD QFP (Quad Flat Pack)
N = 44LD PLCC, N1 = 68LD PLCC
P = 40LD PDIP, P1 = 48LD PDIP
S = 44LD QFP (Quad Flat Pack)
Sb = 100LD SQFP (Shrink Quad Flat Pack)
ROM/EPROM (bytes):
*ROM = SystemSoft Standard BIOSB
Temperature Ranges
C = Commercial (0 to 70 degrees C)
E = Extended (-40 to 85 degrees C)
A = Automotive (-40 to 125 degrees C). To receive more information on Intel's Automotive Products, call
(800) 548-4725 and ask for document #272452-01, "The Winning Formula Automotive Brochure."
Speed (MHz):*= commercial temperature range only
Security: L1 = 1 Lock Bit
L2 = 2 Lock Bits
L3 = 3 Lock Bits
P = Protection
Nomenclature
83C51xx = Mask Rom
80C5x = Mask Rom
87C51xx,Rom = FPROM
87C5x,Rom = FPROM
Where available, order Factory Programmed Rom (FPROM).
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