MC54/74F373 OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS
The MC54/74F373 consists of eight latches with 3-state outputs ...
MC54/74F373 OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS
The MC54/74F373 consists of eight latches with 3-state outputs for bus organized system applications. The flip-flops appear transparent to the data when Latch Enable (LE) is HIGH. When LE is LOW, the data that meets the setup times is latched. Data appears on the bus when the Output Enable (OE) is LOW. When OE is HIGH the bus output is in the high impedance state.
OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS
FAST™
SCHOTTKY TTL
Eight Latches in a Single Package 3-State Outputs for Bus Interfacing ESD > 4000 Volts
CONNECTION DIAGRAM (TOP VIEW)
VCC 20 O7 19 D7 18 D6 17 O6 16 O5 15 D5 14 D4 13 O4 12 LE 11
20 1
J SUFFIX CERAMIC CASE 732-03
N SUFFIX PLASTIC CASE 738-03
20 1
1 OE
2 O0
3 D0
4 D1
5 O1
6 O2
7 D2
8 D3
9 O3
10 GND
20
LOGIC SYMBOL
3 4 7 8 13 14 17 18
1
DW SUFFIX SOIC CASE 751D-03
ORDERING INFORMATION
MC54FXXXJ Ceramic MC74FXXXN Plastic MC74FXXXDW SOIC
11 1
D0 D1 D2 D3 D4 D5 D6 D7 LE OE O0 O1 O2 O3 O4 O5 O6 O7 2 5 6 9 12 15 16 19
VCC = PIN 20 GND = PIN 10
GUARANTEED OPERATING RANGES
Symbol VCC TA Supply Voltage Operating Ambient Temperature Range Parameter 54, 74 54 74 IOH IOL Output Current — HIGH Output Current — LOW 54, 74 54, 74 Min 4.5 –55 0 Typ 5.0 25 25 Max 5.5 125 70 –3.0 24 mA mA Unit V °C
FAST AND LS TTL DATA 4-167
MC54/74F373
FUNCTIONAL DESCRIPTION The F373 contains eight D-type latches with 3-state output buffers. When the Latch Enable (LE) input is HIGH, data on the Dn inpu...
