ICM7170 Intersil Corporation, ICM7170 Datasheet - Page 2

• Manufacturer Part Number: ICM7170
• Description: Microprocessor-compatible, Real-time Clock
• Manufacturer: Intersil Corporation

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