74AC299PC

Counter Type :
Maximum Operating Temperature : + 85 C
Minimum Operating Temperature : - 40 C
Number of Circuits : 8
Logic Type : CMOS
Packaging : Tube
Output Type : 3-State
Counting Sequence : Serial/Parallel to Serial/Parallel
Package / Case : PDIP-20
Logic Family : 74AC
Number of Input Lines : 8 / 8
Propagation Delay Time : 21.5 ns, 14.5 ns


Features:

I_CC and I_OZ reduced by 50%
Common parallel I/O for reduced pin count
Additional serial inputs and outputs for expansion
Four operating modes: shift left, shift right, load and store
3-STATE outputs for bus-oriented applications
Outputs source/sink 24 mA
ACT299 has TTL-compatible inputs


Pinout




Specifications

Supply Voltage (V_CC).................. −0.5V to +7.0V
DC Input Diode Current (I_IK)
    V_I = −0.5V ......................................... −20 mA
    V_I = VCC + 0.5V................................. +20 mA
DC Input Voltage (V_I) .........−0.5V to V_CC + 0.5V
DC Output Diode Current (I_OK)
    V_O = −0.5V........................................  −20 mA
    V_O = V_CC + 0.5V +20 mA
DC Output Voltage (V_O) ......−0.5V to V_CC + 0.5V
DC Output Source
    or Sink Current (I_O)............................ ±50 mA
DC V_CC or Ground Current
    per Output Pin (I_CC or I_GND)............... ±50 mA
Storage Temperature (T_STG)... −65°C to +150°C
Junction Temperature (T_J)
    PDIP ......................................................140°C  


Description

The 74AC299PC is an 8-bit universal shift/storage register with 3-STATE outputs. Four modes of operation are possible: hold (store), shift left, shift right and load data. The parallel load inputs and flip-flop outputs are multiplexed to reduce the total number of package pins. Additional outputs are provided for flip-flops Q₀, Q₇ to allow easy serial cascading. A separate active LOW Master Reset is used to reset the register.

Parameters:

Technical/Catalog Information	74AC299PC
Vendor	Fairchild Semiconductor
Category	Integrated Circuits (ICs)
Logic Type	Shift Register
Function	Universal
Number of Elements	1 - Single
Number of Bits per Element	8
Output Type	Standard
Voltage - Supply	2 V ~ 6 V
Mounting Type	Through Hole
Package / Case	20-DIP
Packaging	Tube
Operating Temperature	-40°C ~ 85°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	74AC299PC 74AC299PC