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PDF IDT74FCT164245TPVB Data sheet ( Hoja de datos )

Número de pieza IDT74FCT164245TPVB
Descripción FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
Fabricantes Integrated Device Technology 
Logotipo Integrated Device Technology Logotipo



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Integrated Device Technology, Inc.
FAST CMOS 16-BIT
BIDIRECTIONAL
3.3V TO 5V TRANSLATOR
IDT54/74FCT164245T
FEATURES:
• 0.5 MICRON CMOS Technology
• Bidirectional interface between 3.3V and 5V busses
• Control inputs can be driven from either 3.3V
or 5V circuits
• ESD >2000V per MIL-STD-883, Method 3015;
>200V using machine model (C = 200pF, R = 0)
• 25 MIL Center SSOP and Cerpack Packages
• Extended commercial range of -40°C to +85°C
• VCC1 = 5V ±10%, VCC2 = 2.7V to 3.6V
• High drive outputs (-32mA IOH, 64mA IOL) on 5V port
• Power-off disable on both ports permits "live insertion"
• Typical VOLP (Output Ground Bounce) < 0.9V at
VCC1 = 5V, VCC2 = 3.3V, TA = 25°C
DESCRIPTION:
The FCT164245T 16-bit 3.3V-to-5V translator is built
using advanced dual metal CMOS technology. This high-
speed, low-power transceiver is designed to interface be-
tween a 3.3V bus and a 5V bus in a mixed 3.3V/5V supply
environment. This enables system designers to interface TTL
compatible 3.3V components with 5V components. The
direction and output enable controls operate these devices as
either two independent 8-bit transceivers or one 16-bit trans-
ceiver. The A port interfaces with the 3.3V bus; the B port
interfaces with the 5V bus. The direction control (xDIR) pin
controls the direction of data flow. The output enable (xOE)
overrides the direction control and disables both ports. These
control signals can be driven from either 3.3V or 5V devices.
The FCT164245T is ideally suited for driving high capaci-
tance loads and low impedance backplanes. The output
buffers are designed with Power-Off Disable capability to
allow "hot insertion" of boards when used as backplane
drivers. They also allow interface between a mixed supply
system and external 5V peripherals.
FUNCTIONAL BLOCK DIAGRAM
1 DIR
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1A8
1OE
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
2555 drw 01
2 DIR
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2A8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 IIntegrated Device Technology, Inc.
8.16
2OE
2B1
2B2
2B3
2B4
2B5
2B6
2B7
2B8
2555 drw 02
FEBRUARY 1996
DSC-2555/4
1

1 page




IDT74FCT164245TPVB pdf
IDT54/74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V-TO-5V TRANSLATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (B PORT - 5V)
Following Conditions Apply Unless Otherwise Specified:
VCC1 = 5V ± 10%, VCC2 = 2.7V to 3.6V; Commercial: TA = –40°C to +85°C, Military: TA = –55°C to +125°C,
Symbol
VIH
VIL
II H
Parameter
Input HIGH Level
(Input and I/O pins)
Input LOW Level
(Input and I/O pins)
Input HIGH Current (Input pins)
Test Conditions(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
VCC1 = Max.
VI = VCC1
Min. Typ.(2) Max. Unit
2.0 — 5.5
V
–0.5 0.8
V
±5 µA
Input HIGH Current (I/O pins)
VCC2 = Max.
±15
II L Input LOW Current (Input pins)
VI = GND
±5
Input LOW Current (I/O pins)
±15
VIK Clamp Diode Voltage
VCC1 = Min., IIN = –18mA
0.7 1.2 V
VOH Output HIGH Voltage
VCC1 = Min.
VCC2 = Min.
VIN = VIH or VIL
IOH = –3mA
IOH = –12mA MIL.
IOH = –15mA COM'L.
2.5 3.5
2.4 3.5
V
IOH = –24mA MIL.
2.0
IOH = –32mA COM'L.(5)
3.0
VOL Output LOW Voltage
VCC1 = Min.,
VCC2 = Min.
VIN = VIH or VIL
IOL = 48mA MIL.
IOL = 64mA COM'L.
— 0.2 0.55 V
IOFF Input/Output Power Off Leakage VCC1 = 0V, VCC2 = 0V, VIN or VO 4.5V
— — ±100 µA
IOS Short Circuit Current(4)
VCC1 = Max., VCC2 = Max., VO = GND(3)
–80 140 225 mA
IO Output Drive Current
VCC1 = Max., VCC2 = Max., VO = 2.5V(3)
–50 –75 180 mA
VH Input Hysteresis
— 150 — mV
ICC1L
Quiescent Power Supply Current VCC1 = Max., VIN = GND or VCC2
— 0.08 1.5
ICC1H
VCC2 = Max.
ICC1Z
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC1 = 5.0V, VCC2 = 3.3V, +25°C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5 Duration of the condition can not exceed one second.
mA
2555 tbl 06
8.16 5

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