CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
Description
IICC898C954C/585/644/58/64
CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 16/32/64-Kbytes of FLASH
FEATURES
• 80C52 based architecture • 16K/32K/64K Byte Flash Memory with fast-
pulse programming algorithm • 256 x 8 RAM • Three 16-bit Timer/Counters • Full duplex serial channel • Boolean processor • Four 8-bit I/O ports, 32 I/O lines • Memory addressing capability
– 64K Program Memory and 64K Data Memory • Program memory lock
– Lock bits (3) • Power save modes:
– Idle and power-down • Eight interrupt sources • Most instructions execute in 0.
3 μs • CMOS and TTL compatible • Maximum speed: 40 MHz @ Vcc = 5V • Packages available:
– 40-pin DIP – 44-pin PLCC – 44-pin PQFP
GENERAL DESCRIPTION
IC89C54, IC89C58, IC89C64 are members of ICSI
embedded microcontroller family.
The IC89C54/58/64 uses the same powerful instruction set, has the same architecture, and is pin-to-pin compatible with standard 80C52 controller devices.
IC89C54/58/64 are just changed internal Flash size, other features are same as standard IC89C52.
The IC89C54/58/64 contains a 16K/32K/64K x 8 Flash; a 256 x 8 RAM; 32 I/O lines for either multi-processor communications; I/O expansion or full duplex UART; three 16-bit timers/counters; an eight-source, two-priority-level, nested interrupt structure; and on chip oscillator and clock circuit.
The IC89C54/58/64 can be expanded using standard TTL compatible memory.
T2/P1.
0 T2EX/P1.
1
P1.
2 P1.
3 P1.
4 P1.
5 P1.
6 P1.
7 RST RxD/P3.
0 TxD/P3.
1 INT0/P3.
2 INT1/P3.
3 T0/P3.
4 T1/P3.
5 WR/P3.
6 RD/P3.
7 XTAL2 XTAL1 GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
40 VCC 39 P0.
0/AD0 38 P0.
1/AD1 37 P0.
2/AD2 36 P0.
3/AD3 35 P0.
4/AD4 34 P0.
5/AD5 33 P0.
6/AD6 32 P0.
7/AD7 31 EA/VPP 30 ALE/PROG 29 PSEN 28 P2.
7/A15 27 P2.
6/A14 26 P2.
5/A13 25 P2.
4/A12 24 P2.
3/A11 23 P2.
2/A10 22 P2.
1/A9 21 P2.
0/A8
Figure 1.
IC89C54/58/64 Pin Configuration: 40-pin DIP
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