74VCX16374
Low-Voltage 1.8/2.5/3.3V
16-Bit D-Type Flip-Flop
With 3.6V–Tolerant Inputs and Outputs
(3–State, Non–Inverting)
The 74VCX16374 is an advanced performance, non–inverting
16–bit D–type flip–flop. It is designed for very high–speed, very
low–power operation in 1.8V, 2.5V or 3.3V systems. The VCX16374
is byte controlled, with each byte functioning identically, but
independently. Each byte has separate Output Enable and Clock Pulse
inputs. These control pins can be tied together for a full 16–bit
operation.
When operating at 2.5V (or 1.8V) the part is designed to tolerate
voltages it may encounter on either inputs or outputs when interfacing
to 3.3V busses. It is guaranteed to be over–voltage tolerant to 3.6V.
The 74VCX16374 consists of 16 edge–triggered flip–flops with
individual D–type inputs and 3.6V–tolerant 3–state outputs. The
clocks (CPn) and Output Enables (OEn) are common to all flip–flops
within the respective byte. The flip–flops will store the state of
individual D inputs that meet the setup and hold time requirements on
the LOW–to–HIGH Clock (CP) transition. With the OE LOW, the
contents of the flip–flops are available at the outputs. When the OE is
HIGH, the outputs go to the high impedance state. The OE input level
does not affect the operation of the flip–flops.
http://onsemi.com
MARKING DIAGRAM
48
48
74VCX16374DT
AWLYYWW
1
TSSOP–48
DT SUFFIX
CASE 1201
1
= Assembly Location
A
WL = Wafer Lot
YY = Year
WW = Work Week
• Designed for Low Voltage Operation: V = 1.65–3.6V
• 3.6V Tolerant Inputs and Outputs
PIN NAMES
Pins
CC
Function
• High Speed Operation: 3.0ns max for 3.0 to 3.6V
3.9ns max for 2.3 to 2.7V
OEn
CPn
D0–D15
O0–O15
Output Enable Inputs
Clock Pulse Inputs
Inputs
7.8ns max for 1.65 to 1.95V
Outputs
• Static Drive: ±24mA Drive at 3.0V
±18mA Drive at 2.3V
±6mA Drive at 1.65V
• Supports Live Insertion and Withdrawal
• I
Specification Guarantees High Impedance When V = 0V
OFF
CC
ORDERING INFORMATION
• Near Zero Static Supply Current in All Three Logic States (20µA)
Substantially Reduces System Power Requirements
Device
74VCX16374DT
74VCX16374DTR
Package
TSSOP
TSSOP
Shipping
39 / Rail
• Latchup Performance Exceeds ±250mA @ 125°C
• ESD Performance: Human Body Model >2000V; Machine Model
2500 / Reel
>200V
Semiconductor Components Industries, LLC, 2001
1
Publication Order Number:
January, 2001 – Rev. 1
74VCX16374/D