Philips Semiconductors
Product specification
74LVC16374A/
74LVCH16374A
16-bit edge triggered D-type flip-flop with 5 Volt
tolerant inputs/outputs (3-State)
2
1998 Mar 17
853-2028 19111
FEATURES
5 volt tolerant inputs/outputs for interfacing with 5V logic
Wide supply voltage range of 1.2 V to 3.6 V
Complies with JEDEC standard no. 8-1A
CMOS low power consumption
MULTIBYTETM flow-through standard pin-out architecture
Low inductance multiple power and ground pins for minimum
noise and ground bounce
Direct interface with TTL levels
All data inputs have bus hold (74LVCH16374A only)
High impedance when V
CC = 0
DESCRIPTION
The 74LVC(H)16374A is a 16-bit edge-triggered flip-flop featuring
separate D-type inputs for each flip-flop and 3-State outputs for bus
oriented applications. The 74LVC16374A consists of 2 sections of
eight positive edge-triggered flip-flops. A clock (CP) input and an
output enable (OE) are provided for each octal. Inputs can be driven
from either 3.3V or 5V devices. In 3-State operation, outputs can
handle 5V. These features allow the use of these devices in a mixed
3.3V/5V environment.
The flip-flops will store the state of their individual D-inputs that meet
the set-up and hold time requirements on the LOW-to-HIGH CP
transition.
When OE is LOW, the contents of the flip-flops are available at the
outputs. When OE is HIGH, the outputs go to the high impedance
OFF-state. Operation of the OE input does not affect the state of the
flip-flops.
The 74LVCH16374A bus hold data inputs eliminates the need for
external pull up resistors to hold unused inputs.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1OE
1Q0
1Q1
GND
1Q2
1Q3
VCC
1Q5
GND
1Q6
1Q7
2Q0
2Q1
GND
1Q4
2Q2
2Q3
VCC
2Q4
2Q5
2D5
2D4
VCC
2D3
2D2
GND
2D1
2D0
1D7
1D6
GND
1D5
1D4
VCC
1D3
1D2
GND
1D1
1D0
1CP
21
22
23
24
25
26
27
28
GND
2Q6
2Q7
2OE
2CP
2D7
2D6
GND
SW00074
QUICK REFERENCE DATA
GND = 0V; Tamb = 25°C; tr = tf ≤ 2.5 ns
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
tPHL/tPLH
Propagation delay
Cp to Qn
CL = 50pF
VCC = 3.3V
3.8
ns
fMAX
Maximum clock frequency
150
MHz
CI
Input capacitance
5.0
pF
CPD
Power dissipation capacitance per flip-flop
VCC = 3.3V1
30
pF
NOTES:
1. CPD is used to determine the dynamic power dissipation (PD in mW):
PD = CPD × VCC2 × fi + S (CL × VCC2 × fo) where:
fi = input frequency in MHz; CL = output load capacity in pF;
fo = output frequency in MHz; VCC = supply voltage in V;
S (CL × VCC2 × fo) = sum of outputs.
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
48-Pin Plastic SSOP Type III
–40
°C to +85°C
74LVC16374A DL
VC16374A DL
SOT370-1
48-Pin Plastic TSSOP Type II
–40
°C to +85°C
74LVC16374A DGG
VC16374A DGG
SOT362-1
48-Pin Plastic SSOP Type III
–40
°C to +85°C
74LVCH16374A DL
VCH16374A DL
SOT370-1
48-Pin Plastic TSSOP Type II
–40
°C to +85°C
74LVCH16374A DGG
VCH16374A DGG
SOT362-1