TC74HC40102AP_07 Datasheet, PDF (2/14 Pages) Toshiba Semiconductor – Dual BCD Programmable Down Counter

IEC Logic Symbol
TC74HC40102A
TC74HC40102,40103AP/AF
TC74HC40103A
Truth Table
CLR
H
H
H
H
L
Control Inputs
APE SPE CI/CE
H
H
H
H
H
L
H
L
X
L
X
X
X
X
X
Mode
Functional Description
Count Inhibit
Count is inhibited regardless of other inputs.
Regular Count Down count on the rising edge of CK
Synchronous Preset Input data is preset on the rising edge of CK
Asynchronous Preset Input data is asynchronously preset to CK
Clear
Counter is set to maximum count.
X: Don’t care
Maximum count: TC74HC40102A “99”, TC74HC40103A “255”
2
2007-10-01