Features: • Two 4-bit binary counters• Two Master Resets to clear each 4-bit counter individuallyPinoutSpecifications SYMBOL PARAMETER RATING UNIT VCC Supply voltage 0.5 to +7.0 V VIN Input voltage 0.5 to +7.0 V IIN Input current 30 to +5 m...
74F393: Features: • Two 4-bit binary counters• Two Master Resets to clear each 4-bit counter individuallyPinoutSpecifications SYMBOL PARAMETER RATING UNIT VCC Supply voltage ...
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.
SYMBOL |
PARAMETER |
RATING |
UNIT |
VCC | Supply voltage |
0.5 to +7.0 |
V |
VIN | Input voltage |
0.5 to +7.0 |
V |
IIN | Input current |
30 to +5 |
mA |
VOUT | Voltage applied to output in high output state |
0.5 to VCC |
V |
IOUT | Current applied to output in low output state |
40 |
mA |
Tamb | Operating free air temperature range |
0 to +70 |
°C |
Tstg | Storage temperature range |
65 to +150 |
°C |
The 74F393 is a Dual Ripple Counter with separate Clock (CPn) and Master Reset (MR) inputs to each counter. The two counters are identified by the "a" and "b" suffixes in the pin configuration. The operation of each half of the 74F393 is the same. The counters are triggered by a High-to-Low transition of the Clock (CPa and CPb) inputs. The counter outputs are internally connected to provide Clock inputs to succeeding stages. The outputs of the ripple counter do not change synchronously and should not be used for high speed address decoding. The Master Resets (MRa and MRb) of the 74F393 are active High asynchronous inputs; one for each 4-bit counter. A High level in the MR input overrides the Clock and sets the outputs Low.