Microcomputer Components
8-Bit CMOS Microcontroller
C502
Data Sheet 08.94
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8-Bit CMOS Microcontroller
C502
Preliminary
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Fully compatible to standard 8051 microcontroller
Versions for 12 / 20 MHz operating frequency
16 K
×
8 ROM (SAB-C502-2R only)
256
×
8 RAM
256
×
8 XRAM (additional on-chip RAM)
Eight datapointers for indirect addressing of program and external data memory
(including XRAM)
Four 8-bit ports
Three 16 -bit Timers / Counters (Timer 2 with Up/Down Counter feature)
USART with programmable 10-bit Baudrate-Generator
Six interrupt sources, two priority levels
Programmable 15-bit Watchdog Timer
Oscillator Watchdog
Fast Power On Reset
Power Saving Modes
P-DIP-40 package and P-LCC-44 package
T
A
: 0 ˚C to 70 ˚C
Temperature ranges:
SAB-C502
T
A
: – 40 ˚C to 85 ˚C
SAF-C502
SAB-C502
Semiconductor Group
1
08.94
C502
The SAB-C502-L/C502-2R described in this document is compatible with the SAB 80C52 and can
be used for all present SAB 80C52 applications.
The SAB-C502-2R contains a non-volatile 16 K
×
8 read-only program memory, a volatile 256
×
8
read/write data memory, four ports, three 16-bit timers/counters, a six source, two priority level
interrupt structure, a serial port and versatile fail save mechanisms. The SAB-C502-L/C502-2R
incorporates 256
×
8 additional on-chip RAM called XRAM. For higher performance eight
datapointers are implemented. The SAB-C502-L is identical, except that it lacks the program
memory on chip. Therefore the term SAB-C502 refers to both versions within this specification
unless otherwise noted.
Semiconductor Group
2
C502
Ordering Information
Type
SAB-C502-LN
SAB-C502-LP
SAB-C502-2RN
SAB-C502-2RP
SAB-C502-L20N
SAB-C502-L20P
SAB-C502-2R20N
SAB-C502-2R20P
SAF-C502-LN
SAF-C502-LP
SAF-C502-2RN
SAF-C502-2RP
SAF-C502-L20N
SAF-C502-L20P
SAF-C502-2R20N
SAF-C502-2R20P
Ordering
Code
Q67120-C838
Q67120-C889
Q67120-C839
Q67120-C890
Q67120-C885
Q67120-C891
Q67120-C884
Q67120-C892
Q67120-C883
Q67120-C893
Q67120-C886
Q67120-C894
Q67120-C887
Q67120-C895
Q67120-C888
Q67120-C896
Package
P-LCC-44
P-DIP-40
P-LCC-44
P-DIP-40
P-LCC-44
P-DIP-40
P-LCC-44
P-DIP-40
P-LCC-44
P-DIP-40
P-LCC-44
P-DIP-40
P-LCC-44
P-DIP-40
P-LCC-44
P-DIP-40
Description
(8-Bit CMOS microcontroller)
for external memory 12 MHz
with mask-programmable ROM,
12 MHz
for external memory 20 MHz
with mask-programmable ROM,
20 MHz
for external ROM, 12 MHz,
ext. temp. – 40 ˚C to 85 ˚C
with mask-programmable ROM,
12 MHz, ext. temp. – 40 ˚C to 85 ˚C
for external memory, 20 MHz,
ext. temp. – 40 ˚C to 85 ˚C
with mask-programmable ROM,
20 MHz, ext. temp. – 40 ˚C to 85 ˚C
Note:
Extended temperature range – 40 ˚C to 110 ˚C (SAH-C502) on request.
Semiconductor Group
3
C502
Pin Configuration
(top view)
(P-LCC-44)
Semiconductor Group
4
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