MIL-M-38510-763 Microcircuits, Digital, Advanced Cmos, Counters, Monolithic Silicon, Positive LogicThis specification covers the detail requirements for monolithic silicon, advanced CMOS, logic microcircuits. Two product assurance classes and a choice of case outlines, lead finishes, and radiation hardness assurance RHA are provided and are reflected in the complete Part or Identifying Number PIN. For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535 see 6.3.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-38510/763B

Device types 02 and 04

MR or SR 1/	PE	CET	CEP	Action on rising clock edge (t)
L	x	x	x	Reset (clear) 2/
H	L	x	x	Load (Pn to Qn) 2/
H	H	H	H	Count (Increment) 2/
H	H	L	x	No change (Hold) 2/
H	H	x	L	No change (Hold) 2/

1/ MR and SR apply to device types 02 and 04, respectively. When MR = L, the device outputs are reset independent of the clock. A reset operation supercedes any other device operation, including the

"no change" operation.

2/ The functionality of the TC output shall satisfy the following Boolean Logic equation,

TC = CET.Q0.Q1.Q2.Q3. For hold and asynchronous reset operations, the functionality of TC is independent of the clock.

Device type 05

Mode select table

PL	CE	U/D	CP	Mode
H	L	L	t	Count up 1/
H	L	H	t	Count down 1/
L	x	x	x	Preset (asynchronous) 1/
H	H	x	x	No change (hold) 1/

1/ The fu nctionality of the TC output shall satisfy the following Boolean Logic equation, TC = (U/D.Q0.Q1.Q2.Q3) + (U/D.Q0.Q1.Q2.Q3)

Device type 05

RC truth table

PL	CE	TC 1/	CP	RC
H	L	H
H	H	x	x	H
H	x	L	x	H
L	x	x	x	H

1/ TC is generated internally.

= Low clock pulse H = High voltage level L = Low voltage level x = Irrelevant

t = Transition from low-to-high voltage level

FIGURE 2. Truth tables.