ICM7226 Intersil Corporation, ICM7226 Datasheet - Page 3

• Manufacturer Part Number: ICM7226
• Description: 8-Digit Multi-Function Frequency Counter/Timer
• Manufacturer: Intersil Corporation

Functional Block Diagram
BUF OSC
EXT OSC
INPUT A
INPUT B
OUTPUT
OUTPUT
RESET
PROGRESS
INPUT
INPUT
INPUT
FUNCTION
OSC
OSC
MEAS IN
OUTPUT
INPUT
INPUT
HOLD
CONTROL
CONTROL
CONTROL
SELECT
LOGIC
LOGIC
LOGIC
INPUT
INPUT
OSC
FN
6
10
10
4
8
DECODER
3
OR
5
D
CL
EN
CL
OUTPUT MUX
4
R
COUNTER
MAIN
ICM7226A, ICM7226B
100Hz
MAIN
FF
4
10
DATA LATCHES
Q
3
4
4
8
OVERFLOW
4
9-17
RESET
DRIVERS
4
STORE
AND RESET
4
DIGIT
STORE
LOGIC
4
4
REFERENCE
COUNTER
SELECT
RANGE
LOGIC
+10
4
3
DECODER
AND LZB
LOGIC
LOGIC
DP
6
CONTROL
5
4
RANGE
7
LOGIC
CONTROL
LOGIC
SEGMENT
DRIVERS
8
EXT RANGE
CONTROL
SEGMENT
OUTPUTS
OUTPUTS
OUTPUTS
8
OUTPUT
OUTPUT
RANGE
STORE
RESET
INPUT
INPUT
INPUT
INPUT
DIGIT
BCD
EXT
DP
(8)
(8)
(4)