MM54C923J-MIL National Semiconductor, MM54C923J-MIL Datasheet - Page 5
MM54C923J-MIL
Manufacturer Part Number
MM54C923J-MIL
Description
Manufacturer
National Semiconductor
Datasheet
1.MM54C923J-MIL.pdf
(10 pages)
Specifications of MM54C923J-MIL
Lead Free Status / Rohs Status
Supplier Unconfirmed
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Manufacturer
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Typical Performance Characteristics
Typical Applications
Note 3 The keyboard may be synchronously scanned by omitting the capacitor at osc and driving osc directly if the system clock rate is lower than 10 kHz
Synchronous Handshake (MM74C922)
Typical I
Any Y Input
Typical F
rp
SCAN
vs V
vs C
IN
at
OSC
TL F 6037 – 10
TL F 6037 – 6
TL F 6037 – 8
5
Synchronous Data Entry Onto Bus (MM74C922)
Outputs are enabled when valid entry is made and
go into TRI-STATE when key is released
Typical R
Any X Output
Typical Debounce Period
vs C
KBM
on
vs V
OUT
at
TL F 6037 – 11
TL F 6037 – 7
TL F 6037 – 9