ICM7226A_01 Datasheet, PDF (2/19 Pages) Intersil Corporation – 8-Digit, Multi-Function, Frequency Counter/Timer

Pinouts
ICM7226A, ICM7226B
ICM7226A
COMMON ANODE (CERDIP)
TOP VIEW
CONTROL INPUT 1
INPUT B 2
MEASUREMENT IN PROGRESS 3
FUNCTION 4
STORE 5
BCD 4 6
BCD 8 7
DP 8
SEG e 9
SEG g 10
SEG a 11
V_SS 12
SEG d 13
SEG b 14
SEG c 15
SEG f ¹⁶
BCD 2 ¹⁷
BCD 1 ¹⁸
RST INPUT 19
EXT DP IN 20
40 INPUT A
39 HOLD
38 BUF OSC OUT
37 NC (NOTE 1)
36 OSC OUT
35 OSC IN
34 NC (NOTE 1)
33 EXT OSC IN
32 RST OUT
31 EXT RANGE
30 D1
29 D2
28 D3
27 D4
26 D5
25 V_DD
24 D6
23 D7
22 D8
21 RANGE
ICM7226B
COMMON CATHODE (PDIP)
TOP VIEW
CONTROL INPUT 1
INPUT B 2
MEASUREMENT IN PROGRESS 3
FUNCTION 4
STORE 5
BCD 4 6
BCD 8 7
D1 8
D3 9
D2 10
D4 11
V_SS 12
D5 13
D6 14
D7 15
D8 ¹⁶
BCD 2 ¹⁷
BCD 1 ¹⁸
RST INPUT 19
EXT DP IN 20
NOTE:
1. For maximum frequency stability, connect to V_DD or V_SS.
40 INPUT A
39 HOLD
38 BUF OSC OUT
37 NC (NOTE 1)
36 OSC OUT
35 OSC IN
34 NC (NOTE 1)
33 EXT OSC IN
32 RST OUT
31 EXT RANGE
30 DP OUT
29 SEG g
28 SEG e
27 SEG a
26 SEG d
25 V_DD
24 SEG b
23 SEG c
22 SEG f
21 RANGE
2