IN80C39N Datasheet, PDF (1/2 Pages) Integral Corp. – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

IN80C39N/IN80C49N
CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
The 80C39/80C49 is a high-performance microcontroller fabricated with high-density
CMOS technology.
The 80C49 contains a 2k x 8 ROM , a 128 x 8 RAM , 27 I/O lines, 8-bit counter/timers, a
two-source, one level interrupt structure, and on-chip oscillator and clock circuits.
The device has two modes of power reduction  idle mode and power-down mode. The
idle mode freezes the CPU while allowing the RAM, timer, and interrupt system to
continue functioning. The power-down mode saves the RAM contents but freezes the
oscillator, causing all other chip functions to be inoperative.
FEATURES
PIN CONFIGURATIONS
8039/8049 compatible (MCS-48 family)
 2k x 8 ROM (80C49)
 ROMless (80C39)
 128 x 8 RAM
 8-bit counter/timers
• Memory addressing capability
 4k ROM and 4k RAM
• Power control modes:
 Idle mode
 Power-down mode
• CMOS and TTL compatible
• Speed range at V_CC=5V
 8 MHz
• Fully static design operation from DC to 8MHz
• Single step input
TO 1
XTAL 1 2
XTAL 2 3
RESET
4
SS 5
INT 6
EA 7
RD 8
PSEN
9
WR
10
ALE 11
DB0 12
DB1 13
DB2 14
DB3 15
DB4 16
DB5 17
DB6 18
DB7 19
V SS
20
40
39
38
37
36
35
34
33
P L A ST IC
32
DUAL
IN -L IN E
31
PACKAGE
30
29
28
27
26
25
24
23
22
21
V CC
T1
P27
P26
P25
P24
P17
P16
P15
P14
P13
P12
P11
P10
V DD
PROG
P23
P22
P21
P20
1