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 For this product, the requirements of MIL-M- 38510 have been superseded by MIL-PRF-38535, see 6.3.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

1.3  Absolute maximum ratings.

Supply voltage range .............................................................................. -0.5 V dc to +7.0 V dc

Input voltage range ................................................................................. -1.5 V dc at -18 mA to +5.5 V dc

Storage temperature range ..................................................................... -65° to +150°C Maximum power dissipation, (PD)  1/

Device type 01 and 02.......................................................................... 148.5  mW

Device type 03 and 04.......................................................................... 82.5 mW dc

Lead temperature (soldering, 10 seconds)  ............................................. +300°C Thermal resistance, junction to case (eJC):

Cases A, B, C, D, X, and 2  .................................................................. (See MIL-STD-1835)

Junction temperature (TJ) 2/  ................................................................... +175°C

1.4  Recommended operating conditions.

Supply voltage (VCC) ............................................................................... 4.5 V dc minimum to 5.5 V dc maximum

Minimum high level input voltage (VIH) .................................................... 2.0 V dc Maximum low level input voltage (VIL)  .................................................... 0.7 V dc Normalized fanout (each output) ............................................................. 10 maximum Width of input count pulse, tp(IN)

Types 01 and 02

CPo

........................................................................................... 20 ns minimum

CP1  ............................................................................................ 30 ns minimum

Types 03 and 04

Input A ........................................................................................ 17 ns minimum

Input B ........................................................................................ 34 ns minimum

Width of reset pulse, tp(reset)

Types 01 and 02 ............................................................................... 20 ns minimum

Types 03 and 04 ............................................................................... 25 ns minimum

Input clock frequency, fclock

Types 01 and 02

CPo

........................................................................................... 0 to 30 MHz

CP1  ............................................................................................ 0 to 15 MHz

Types 03 and 04

Input A ........................................................................................ 0 to 29 MHz

Input B ........................................................................................ 0 to 13 MHz

Width of parallel load pulse, tW( PL )

Types 01 and 02 ............................................................................... 20 ns minimum

Setup time, t(SETUP)

Data inputs high  ......................................................................... 10 ns minimum

Data inputs low ........................................................................... 15 ns minimum

Enable time from load, reset to clock tEN

Types 01 and 02 ............................................................................... 20 ns minimum

Hold time at data inputs, tH

Types 01 and 02 ............................................................................... 20 ns minimum

Case operating temperature range (TC) .................................................. -55° to +125°C

1/  Must withstand the added PD due to short-circuit test (e.g., IOS).

2/  Maximum junction temperature shall not be exceeded except in accordance with allowable short

duration burn-in screening condition in accordance with MIL-PRF-38535.

2

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