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 For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.4.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: tr ≤ tf ≤ 15 ns, PRR = 500 kHz, ZOUT = 50 Ω.

2. Voltage values are with respect to network ground terminal.

3. CL = 50 minimum including scope probe, wiring, and stray capacitance, without package in test fixture.

4. All diodes are 1N3064, or equivalent.

5. When testing fMAX: PRR = 3 MHz for tests at 25°C, and 2.5 MHz for tests at 125°C and -55°C. Omit load circuits 2, 3 and 4 and remove connection from output A to input B.

FIGURE 4. Switching test circuits and waveforms for device type 02.