900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






etcTI

CY74FCT162245T Datasheet Preview

CY74FCT162245T Datasheet

16-Bit Transceivers

No Preview Available !

1CY74FCT16445T/2
H245T
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
CY74FCT16245T
CY74FCT162245T
CY74FCT162H245T
SCCS026B - July 1994 - Revised September 2001
Features
Ioff supports partial-power-down mode operation
Edge-rate control circuitry for significantly improved
noise characteristics
Typical output skew < 250 ps
ESD > 2000V
TSSOP (19.6-mil pitch) and SSOP (25-mil pitch)
packages
Industrial temperature range of –40˚C to +85˚C
VCC = 5V ± 10%
CY74FCT16245T Features:
64 mA sink current, 32 mA source current
Typical VOLP (ground bounce)<1.0V at VCC = 5V,
TA = 25˚C
CY74FCT162245T Features:
Balanced output drivers: 24 mA
Reduced system switching noise
Typical VOLP (ground bounce) <0.6V at VCC = 5V,
TA= 25˚C
CY74FCT162H245T Features:
Bus hold on data inputs
Eliminates the need for external pull-up or pull-down
resistors
16-Bit Transceivers
Functional Description
These 16-bit transceivers are designed for use in bidirectional
synchronous communication between two buses, where high
speed and low power are required. With the exception of the
CY74FCT16245T, these devices can be operated either as
two independent octals or a single 16-bit transceiver. Direction
of data flow is controlled by (DIR), the Output Enable (OE)
transfers data when LOW and isolates the buses when HIGH.
This device is fully specified for partial-power-down
applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device
when it is powered down.
The CY74FCT16245T is ideally suited for driving
high-capacitance loads and low-impedance backplanes.
The CY74FCT162245T has 24-mA balanced output drivers
with current limiting resistors in the outputs. This reduces the
need for external terminating resistors and provides for mini-
mal undershoot and reduced ground bounce. The
CY74FCT162245T is ideal for driving transmission lines.
The CY74FCT162H245T is a 24-mA balanced output part that
has bus hold on the data inputs. The device retains the input’s
last state whenever the input goes to high impedance. This
eliminates the need for pull-up/down resistors and prevents
floating inputs.
Logic Block Diagrams CY74FCT16245T,CY74FCT162245T,
CY74FCT162H245T
1DIR
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1A8
1OE
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
FCT16245–1
2DIR
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2A8
2OE
2B1
2B2
2B3
2B4
2B5
2B6
2B7
2B8
FCT16245–2
Pin Configuration
SSOP/TSSOP
Top View
1DIR
1B1
1B2
GND
1B3
1B4
VCC
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
VCC
2B5
2B6
GND
2B7
2B8
2DIR
1 48
2 47
3 46
4 45
5 44
6 43
7 16245T 42
8
162245T 41
162H245T
9 40
10 39
11 38
12 37
13 36
14 35
15 34
16 33
17 32
18 31
19 30
20 29
21 28
22 27
23 26
24 25
1OE
1A1
1A2
GND
1A3
1A4
VCC
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
VCC
2A5
2A6
GND
2A7
2A8
2OE
FCT16245–3
Copyright © 2001, Texas Instruments Incorporated




etcTI

CY74FCT162245T Datasheet Preview

CY74FCT162245T Datasheet

16-Bit Transceivers

No Preview Available !

CY74FCT16245T
CY74FCT162245T
CY74FCT162H245T
Pin Description
Name
OE
DIR
A
B
Description
Three-State Output Enable Inputs (Active LOW)
Direction Control
Inputs or Three-State Outputs[1]
Inputs or Three-State Outputs[1]
Function Table[2]
Inputs
OE
L
L
H
DIR
L
H
X
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
High Z State
Maximum Ratings[3, 4]
(Above which the useful life may be impaired. For user
guidelines, not tested.)
Storage Temperature ........................Com’l -55°C to +125°C
Ambient Temperature with
Power Applied....................................Com’l -55°C to +125°C
DC Input Voltage ........................................... –0.5V to +7.0V
DC Output Voltage......................................... –0.5V to +7.0V
DC Output Current
(Maximum Sink Current/Pin) ........................–60 to +120 mA
Power Dissipation .......................................................... 1.0W
Static Discharge Voltage............................................>2001V
(per MIL-STD-883, Method 3015)
Operating Range
Range
Ambient
Temperature
Industrial
–40°C to +85°C
VCC
5V ± 10%
Notes:
1. On CY74FCT162H245T these pins have bus hold.
2. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care. Z = High Impedance.
3. Operation beyond the limits set forth may impair the useful life of the device. Unless otherwise noted, these limits are over the operating free-air temperature range.
4. Unused inputs must always be connected to an appropriate logic voltage level, preferably either VCC or ground.
Electrical Characteristics Over the Operating Range
Parameter
Description
Test Conditions
VIH Input HIGH Voltage
VIL Input LOW Voltage
VH Input Hysteresis[6]
VIK Input Clamp Diode Voltage
IIH Input HIGH Current
Standard
Bus Hold
VCC=Min., IIN=–18 mA
VCC=Max., VI=VCC
IIL
IBBH
IBBL
IBHHO
IBHLO
IOZH
Input LOW Current
Standard VCC=Max., VI=GND
Bus Hold
Bus Hold Sustain Current on Bus Hold Input[7] VCC=Min. VI=2.0V
VI=0.8V
Bus Hold Overdrive Current on Bus Hold Input[7] VCC=Max., VI=1.5V
High Impedance Output Current
(Three-State Output pins)
VCC=Max., VOUT=2.7V
IOZL High Impedance Output Current
(Three-State Output pins)
IOS Short Circuit Current[8]
IO Output Drive Current[8]
IOFF Power-Off Disable
VCC=Max., VOUT=0.5V
VCC=Max., VOUT=GND
VCC=Max., VOUT=2.5V
VCC=0V, VOUT4.5V[9]
Min.
2.0
–50
+50
Typ.[5]
100
–0.7
Max.
0.8
–1.2
±1
±100
±1
±100
TBD
Unit
V
V
mV
V
µA
µA
µA
µA
mA
±1 µA
±1 µA
–80 –140 –200 mA
–50 –180 mA
±1 µA
2


Part Number CY74FCT162245T
Description 16-Bit Transceivers
Maker etcTI
PDF Download

CY74FCT162245T Datasheet PDF






Similar Datasheet

1 CY74FCT162245T 16-Bit Transceiver
Cypress Semiconductor
2 CY74FCT162245T 16-Bit Transceivers
etcTI





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy