74LS573: Top Choice in United States (USA) Utsource Holding Company Limited

Description

BUY 74LS573 https://www.utsource.net/itm/p/243743.html
Octal D-Type Latch with 3-STATE Outputs

Below is the parameter table and instructions for the 74LS573 Octal D-Type Transparent Latch/3-State Output Register.

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	V_CC	4.75	5.0	5.25	V
Input High Voltage	V_IH	2.0	-	5.25	V
Input Low Voltage	V_IL	0.0	-	0.8	V
Output High Voltage (I_O = -0.4 mA)	V_OH	2.4	3.5	-	V
Output Low Voltage (I_O = 4.0 mA)	V_OL	0.0	-	0.4	V
Input Leakage Current	I_IL	-1.0	-	0.1	μA
Output Leakage Current	I_OL	-1.0	-	1.0	μA
Propagation Delay Time	t_pd	15	22	34	ns
Power Consumption	P_tot	-	100	-	mW

Data Latching:
- When LE is high, the data on the D inputs is transparently passed to the Q outputs.
- When LE is low, the data present on the D inputs at the moment LE went low is latched and held at the Q outputs.
Output Enable:
- When OE is low, the Q outputs are enabled and reflect the latched data.
- When OE is high, the Q outputs are in a high-impedance state (tri-state), effectively disconnecting them from the bus.

Connecting the IC:
- Connect V_CC to +5V and GND to ground.
- Connect the data lines (1D to 8D) to your data source.
- Connect the output lines (1Q to 8Q) to your load or bus.
- Connect LE to a control signal that determines when to latch the data.
- Connect OE to a control signal that determines when to enable the outputs.
Latching Data:
- Set LE high to allow data to pass through.
- Set LE low to latch the current data.
- Set OE low to enable the outputs.
- Set OE high to disable the outputs (high-impedance).

Ensure that all unused input pins are tied to either V_CC or GND to prevent floating inputs.
The 74LS573 is designed for TTL logic levels and should be used with other TTL-compatible devices.

This information should help you understand and use the 74LS573 effectively in your circuits.

(For reference only)