MIL-M-38510-25 Microcircuits, Digital, Bipolar, Ttl, Low Power, Counters, Monolithic SiliconThis specification covers the detail requirements for monolithic silicon, 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 For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.4.

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MIL-M-38510/25E

NOTES:

1. The pulse generator has the following characteristics: tp � 200 ns, PRR = 500 kHz, ZOUT = 50 Ω, tr ≤ tf ≤ 15 ns.

2. All diodes are 1N3064, or equivalent.

3. CL includes probe and jig capacitance.

4. When testing fMAX: PRR = 3 MHz for subgroup A-9 and 2.5 MHz for subgroups A-10 and A-11. Omit

load circuits 2, 3 and 4 and remove connection from output QA to input BD.

FIGURE 3. Switching test circuits and waveforms for device type 01.