MIL-M-38510-320 Microcircuits, Digital, Bipolar Low-Power Schottky Ttl. Counters, Cascadable, Monolithic SiliconThis specification covers the detail requirements for monolithic silicon, low-power Schottky TTL, binary and decade counters. Two product assurance classes and a choice of case outlines and lead finishes are provided for each type and are reflected in the complete part number. For this product, the requirements of MIL-M- 38510 have been superseded by MIL-PRF-38535, see 6.3.

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MIL-M-38510/320D

Terminal number	Terminal symbol device type 01 and 02		Terminal symbol device type 03		Terminal symbol device type 04
Terminal number	Cases A, B, C, and D	Cases X and 2	Cases A, B, C, and D	Cases X and 2	Cases A, B, C, and D	Cases X and 2
1	PL	NC	R9(1)	NC	NC	NC
2	Q2	PL	NC	R9(1)	NC	NC
3	D2	Q2	R9(2)	NC	NC	NC
4	D0	D2	QC	R9(2)	QC	NC
5	Q0	NC	QB	NC	QB	NC
6	CP1	D0	NC	QC	NC	QC
7	GND	NC	GND	NC	GND	NC
8	CPo	Q0	QD	QB	QD	QB
9	Q1	CP1	QA	NC	QA	NC
10	D1	GND	INPUT A	GND	INPUT A	GND
11	D3	NC	INPUT B	NC	INPUT B	NC
12	Q3	CPo	R0(1)	QD	R0(1)	QD
13	MR	Q1	R0(2)	QA	R0(2)	QA
14	vCC	D1	vCC	INPUT A	vCC	INPUT A
15		NC		NC		NC
16		D3		INPUT B		INPUT B
17		NC		NC		NC
18		Q3		R0(1)		R0(1)
19		MR		R0(2)		R0(2)
20		vCC		vCC		vCC

FIGURE 1. Terminal connections.