ICM7170 Datasheet, PDF (2/13 Pages) Intersil Corporation – Microprocessor-Compatible, Real-Time Clock

Pinouts
ICM7170
(PDIP, SBDIP)
TOP VIEW
WR 1
ALE 2
CS 3
A4 4
A3 5
A2 6
A1 7
A0 8
OSC OUT 9
OSC IN 10
INT SOURCE 11
INTERRUPT 12
24 RD
23 V_DD
22 D7
21 D6
20 D5
19 D4
18 D3
17 D2
16 D1
15 D0
14 V_BACKUP
13 V_SS (GND)
ICM7170
ICM7170
(SOIC)
TOP VIEW
A1 1
A0 2
OSC OUT 3
OSC IN 4
INT SOURCE 5
INT 6
V_SS 7
V_BACKUP 8
D0 9
D1 10
D2 11
D3 12
24 A2
23 A3
22 A4
21 CS
20 ALE
19 WR
18 RD
17 V_DD
16 D7
15 D6
14 D5
13 D4
Functional Block Diagram
24
RD
1
WR
2
µP
ALE
CONTROL
3
CS
23
V_DD
14
V_BACKUP
13
V_SS
POWER
SUPPLY
CONTROL
OSCILLATOR
CRYSTAL
OSC OSC
OUT IN
9
10
LOW
POWER
OSC
INTERRUPTS
PERIODIC
COMPARE
TIME COUNTERS
0.01 SEC MIN HOUR DAY DATE MON YEAR
8
8-BIT BUS
8
12
INT
INT
11 ^SOURCE
THREE-STATE
I/O
DRIVERS
8
DATA I/O
D0 - D7
15 - 22
ADDRESS
INPUTS
A0 - A4
5
8-4
ADDRESS
LATCHES
0.01 SEC MIN HOUR DAY DATE MON YEAR
COMPARE RAM
CMD
REG
STATUS
REG
INTER
MASK
REG
12-6