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PI74LPT16374AA

P1-P3P4-P6P7-P7
1
PS2070F 11/10/08
PI74LPT16374
Fast CMOS 3.3V
16-Bit Register (3-State)
Features
• Compatible with LCX
™
and LVT
™
families of products
• Supports 5V Tolerant Mixed Signal Mode Operation
– Input can be 3V or 5V
– Output can be 3V or connected to 5V bus
• Advanced Low Power CMOS Operation
• Excellent output drive capability:
Balanced drives (24 mA sink and source)
• Pin compatible with industry standard double-density pinouts
• Low ground bounce outputs
• Hysteresis on all inputs
• ESD Protection exceeds 2000V
• Industrial operating temperature range: –40°C to +85°C
• Multiple center pins and distributed V
CC
/GND pins minimize
switching noise
• Packaging (Pb-free & Green available):
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
Description
Pericom Semiconductor’s PI74LPT16374 is a 16-bit octal register
designed with 16 D-type fl ip-fl ops with a buffered common clock
and 3-state outputs. The Output Enable (xOE) and clock (xCLK)
controls are organized to operate as two 8-bit registers or one 16-bit
register. When OE is HIGH, the outputs are in the high impedance
state. Input data meeting the setup and hold time requirements of
the D inputs is transferred to the O outputs on the LOW-to-HIGH
transition of the clock input.
The PI74LPT16374 can be driven from either 3.3V or 5.0V
devices allowing this device to be used as a translator in a mixed
3.3/5.0V system.
Block Diagram
1
OE
1
CLK
1
O
0
C
D
1
D
0
TO 7 OTHER CHANNELS
2
OE
2
CLK
2
O
0
C
D
2
D
0
TO 7 OTHER CHANNELS
08-0291
PI74LPT16374
3.3V 16-Bit Register (3-State)
2
PS2070F 11/10/08
Truth Table
Function
Inputs
(1)
Outputs
(1)
xDx xCLK xOE xOx
High-Z
XL H Z
XH H Z
Load
Register
L L L
H L H
L H Z
H H Z
Notes:
1. H = High Voltage Level, X = Don't Care,
L = Low Voltage Level, Z = High Impedance
Pin Description
Pin Name Description
xOE 3-State Output Enable Inputs (Active LOW)
xCLK Clock Inputs
xDx Data Inputs
xOx 3-State Outputs
GND Ground
V
CC
Power
Pin Confi guration
1
OE 1
1
O
0
2
1
O
1
3
GND 4
1
O
2
5
1
O
3
6
V
CC
7
1
O
4
8
1
O
5
9
GND 10
1
O
6
11
1
O
7
12
2
O
0
13
2
O
1
14
GND 15
2
O
2
16
2
O
3
17
V
CC
18
2
O
4
19
2
O
5
20
GND 21
2
O
6
22
2
O
7
23
2
OE 24
1
CL
K
48
1
D
0
47
1
D
1
46
GND45
1
D
2
44
1
D
3
43
V
CC
42
1
D
4
41
1
D
5
40
GND39
1
D
6
38
1
D
7
37
2
D
0
36
2
D
1
35
GND34
2
D
2
33
2
D
3
32
V
CC
31
2
D
4
30
2
D
5
29
GND28
2
D
6
27
2
D
7
26
2
CL
K
25
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Stresses greater than those listed under MAX I MUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other con-
di tions above those indicated in the operational
sections of this specifi cation is not implied. Ex po sure to
absolute maximum rating conditions for ex tend ed periods
may affect reliability.
Storage Temperature .............................................................. –55°C to +125°C
Ambient Temperature with Power Applied ............................. –40°C to +85°C
Supply Voltage to Ground Potential (Inputs & V
CC
Only) ....... –0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) .... –0.5V to +7.0V
DC Input Voltage ...................................................................... –0.5V to +7.0V
DC Output Current .................................................................................120 mA
Power Dissipation ......................................................................................1.0W
08-0291
PI74LPT16374
3.3V 16-Bit Register (3-State)
3
PS2070F 11/10/08
Capacitance (TA = 25°C, f = 1 MHz)
Parameters
(1)
De scrip tion Test Conditions Typ Max. Units
C
IN
Input Capacitance V
IN
= 0V 4.5 6
pF
C
OUT
Output Capacitance V
OUT
= 0V 5.5 8
Notes:
1. This parameter is determined by device characterization but is not production tested.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 2.7V to 3.6V)
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max. Units
V
IH
Input HIGH Voltage (Input pins)
Guaranteed Logic HIGH Level
2.2 5.5
V
Input HIGH Voltage (I/O pins) 2.0 5.5
V
IL
Input LOW Voltage
(Input and I/O pins)
Guaranteed Logic LOW Level –0.5 0.8
I
IH
Input HIGH Current (Input pins) V
CC
= Max. V
IN
= 5.5V ±1
μA
Input HIGH Current (I/O pins) V
CC
= Max. V
IN
= VCC ±1
IIL
Input LOW Current (Input pins) V
CC
= Max. V
IN
= GND ±1
Input LOW Current (I/O pins) V
CC
= Max. V
IN
= GND ±1
I
OZH
High Impedance Output Current V
CC
= Max. V
OUT
= 5.5V ±1
I
OZL
(3-State Output pins) V
CC
= Max. V
OUT
= GND ±1
V
IK
Clamp Diode Voltage V
CC
= Min., I
IN
= –18 mA –0.7 –1.2 V
I
ODH
Output HIGH Current
V
CC
= 3.3V, V
IN
= V
IH
or V
IL
,
V
O
= 1.5V
(3)
–36 –60 –110
mA
I
ODL
Output LOW Current
V
CC
= 3.3V, V
IN
= V
IH
or V
IL
,
V
O
= 1.5V
(3)
50 90 200
V
OH
Output HIGH Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OH
= –0.1 mA V
CC
-0.2
V
I
OH
= –3 mA 2.4 3.0
V
CC
= 3.0V,
VIN = V
IH
or V
IL
I
OH
= –8 mA 2.4
(5)
3.0
I
OH
= –24 mA 2.0
V
OL
Output LOW Voltage
V
CC
= Min. I
OL
= 0.1 mA 0.2
V
IN
= V
IH
or V
IL
I
OL
= 16 mA 0.2 0.4
I
OL
= 24 mA 0.3 0.5
I
OS
Short Circuit Current
(4)
V
CC
= Max.
(3)
, V
OUT
= GND –60 –85 –240 mA
I
OFF
Power Down Disable V
CC
= 0V, V
IN
or V
OUT
≤ 4.5V ±100 μA
V
H
Input Hysteresis 150 mV
Notes:
1. For Max. or Min. conditions, use appropriate value specifi ed under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5. V
OH
= V
CC
– 0.6V at rated current.
08-0291
P1-P3P4-P6P7-P7

PI74LPT16374AA

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Description:
IC 16-BIT OCTAL REG 48 TSSOP
Lifecycle:
New from this manufacturer.
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