SGS Thomson Microelectronics 74AC16374TTR Datasheet
1/10February 2003
■ HIGH SPEED:
f
MAX
= 120MHz (TYP.) at VCC=5V
■ LOW POWER DISSIPATION:
I
CC
=8µA(MAX.) at TA=25°C
■ HIGH NO ISE IMMUNITY:
V
NIH=VNIL
=28%VCC(MIN.)
■ 50ΩTRASMISSION LINE DRIVING
CAPABILITY
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
|=IOL= 24mA (M IN)
■ OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2 V to 6V
■ IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74AC16374 is an advanced high-speed
CMOS 16-BIT D-TYPE FLIP-FLOP (3-STATE)
fabricated with sub-micron silicon gate and
double-layer metal wiring C
2
MOS tecnology.
This 16 bit D-Type Flip-Flop is controlled by two
clock inputs (CK) and two output enable inputs
(OE
). The device can be used as two 8-bit
flip-flops or one 16-bit flip-flop.
On the positive transition of the cloc k, the Q
outputs will be set to the logic stat e that were
setup at the D inputs.
While the (OE
) input is low , the outputs will be in
a normal logic state (high or low logic level); while
OE
is high, the outputs will be in a high impedance
state.
The output control does not affect the interna l
operation of flip-flops; that is, the old data c an be
retained or the new data can be e ntered even
while the outputs are off.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD imm unit y and transient ex c ess
voltage.
74AC16374
16-BIT D-TYPE FLIP-FLOP
WITH 3-STATE OUT PUTS (NON INVERTED)
ORDER CODES
PACKAGE TUBE T & R
TSSOP 74AC16374TTR
TSSOP
PIN CONNE CTION
74AC16374
2/10
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
Z : High Impedance
IEC LOGIC SYMBOLS
PIN No SYMBOL NAME AND FUNCTION
1 1OE
3 State Output Enable
Input (Active LOW)
2, 3,5,6,8, 9,
11, 12
1Q0 to
1Q7
3-State Outputs
13,14,16, 17,
19, 20, 22, 23
2Q0 to
2Q7
3-State Outputs
24 2OE
3 State Output Enable
Input (Active LOW)
25 2CK Clock Input (LOW-to-HIGH
Edge Trigger)
36,35,33, 32,
30, 29, 27, 26
2D0 to 2D7 Data Inputs
47,46,44, 43,
41, 40, 38, 37
1D0 to 1D7 Data Inputs
48 1CK Clock Input (LOW-to-HIGH
Edge Trigger)
4, 10, 15, 21,
28, 34, 39, 45
GND Ground (0V)
7, 18, 31, 42 V
CC
Positive Supply Voltage
INPUTS OUTPUTS
OE
CK D Q
HXX Z
L X NO CHANGE
LLL
LHH
74AC16374
3/10
LOGIC DIAGRAM
This logic diagram has not to be used to estimate propagation delays
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
RECOMMENDED OPERAT ING CONDITIONS
1) VINfrom30% to 70%of V
CC
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.5 to +7 V
V
I
DC Input Voltage -0.5 to VCC+ 0.5
V
V
O
DC Output Voltage -0.5 to VCC+ 0.5
V
I
IK
DC Input Diode Current
± 20 mA
I
OK
DC Output Diode Current
± 20 mA
I
O
DC Output Current
± 50 mA
I
CC
or I
GND
DC VCCor Ground Current
± 400 mA
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Symbol Parameter Value Unit
V
CC
Supply Voltage
2to6 V
V
I
Input Voltage 0 to V
CC
V
V
O
Output Voltage 0 to V
CC
V
T
op
Operating Temperature
-55 to 125 °C
dt/dv
Input Rise and Fall Time V
CC
= 3.0, 4.5 or 5.5V (note 1)
8 ns/V
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