DM74AS74N

Supply Voltage - Max : 5.5 V
Number of Circuits : 2
Input Type : Single-Ended
Mounting Style : Through Hole
Packaging : Tube
Polarity : Inverting/Non-Inverting
Output Type : Differential
Maximum Operating Temperature : + 70 C
Package / Case : PDIP-14
Low Level Output Current : 20 mA
Logic Type : D-Type Edge Triggered Flip-Flop
Propagation Delay Time : 9 ns
Logic Family : 74AS
High Level Output Current : - 2 mA


Features:

·  Switching specifications at 50 pF
·  Switching specifications guaranteed over full temperature
  and VCC range
·  Advanced oxide-isolated, ion-implanted Schottky TTL process
·  Functionally and pin-for-pin compatible with Schottky
  and LS TTL counterpart
·  Improved AC performance over S74 at approximately
  half the power


Pinout




Specifications

Supply Voltage ............................................................7V
Input Voltage ..............................................................7V
Operating Free Air Temperature Range..... 0°C to +70°C
Storage Temperature Range ................-65°C to +150°C
Typical qJA
N Package........................................................ 76.0°C/W
M Package......................................................... 107.0°C
Note 2: The "Absolute Maximum Ratings" are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The "Recommended Operating Conditions" table will define the conditions
for actual device operation.


Description

The AS74 is a dual edge-triggered flip-flops. Each flip-flop has individual D, clock, clear and preset inputs, and also complementary Q and Q outputs.

Information at input D is transferred to the Q output on the positive going edge of the clock pulse. Clock triggering of AS74 occurs at a voltage level of the clock pulse and is not directly related to the transition time of the positive going pulse. When the clock input is at either the HIGH or LOW level, the D input signal has no effect.

Asynchronous preset and clear inputs will set or clear Q output respectively upon the application of LOW level signal.