CY74FCT162827ATPVCR [TI]
FCT SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56, 0.300 INCH, 0.635 MM PITCH, GREEN, PLASTIC, SSOP-56;
| 型号： | CY74FCT162827ATPVCR |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | FCT SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56, 0.300 INCH, 0.635 MM PITCH, GREEN, PLASTIC, SSOP-56 总线驱动器 总线收发器 逻辑集成电路 光电二极管 输出元件 |
| 文件： | 总7页 (文件大小：65K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1CY74FCT162827T
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
CY74FCT16827T
CY74FCT162827T
SCCS064 - August 1994 - Revised March 2000
20-Bit Buffers/Line Drivers
CY74FCT162827T Features:
Features
• Balanced 24 mA output drivers
• Reduced system switching noise
• Typical VOLP (ground bounce) <0.6V at VCC = 5V,
TA= 25˚C
• FCT-E speed at 3.2 ns
• Power-off disable outputs permits live insertion
• Edge-rate control circuitry for significantly improved
noise characteristics
Functional Description
• 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%
The CY74FCT16827T 20-bit buffer/line driver and the
CY74FCT162827T
20-bit
buffer/line
driver
provide
high-performance bus interface buffering for wide data/address
paths or buses carrying parity. These parts can be used as a single
20-bit buffer or two 10-bit buffers. Each 10-bit buffer has a pair of
NANDed OE for increased flexibility. The outputs are designed with
a power-off disable feature to allow for live insertion of boards.
CY74FCT16827T Features:
• 64 mA sink current, 32 mA source current
• Typical VOLP (ground bounce) <1.0V at VCC = 5V,
TA = 25˚C
The CY74FCT16827T is ideally suited for driving
high-capacitance loads and low-impedance backplanes.
The CY74FCT162827T has 24-mA balanced output drivers
with current-limiting resistors in the outputs. This reduces the
need for external terminating resistors and provides for
minimal undershoot and reduced ground bounce. The
CY74FCT162827T is ideal for driving transmission lines.
Logic Block Diagrams
Pin Configuration
SSOP/TSSOP
Top View
OE
1
1
OE
56
1
2
3
4
OE
2
1
1
1
1
1
OE
1
2
Y
A
A
1
1
1
55
54
53
52
1
2
Y
2
GND
Y
GND
A
1
3
5
1
1
3
4
Y
4
A
1
6
51
50
49
48
Y
A
1
1
1
1
V
CC
V
CC
7
Y
1
1
1
5
A
A
1
1
5
6
8
Y
6
9
Y
7
A
10
11
1
7
47
46
GND
GND
FCT16827-1
TO 9 OTHER CHANNELS
Y
8
1
A
A
1
1
8
9
45
44
43
42
41
12
13
Y
9
1
A
Y
10
14
15
16
17
18
1
10
1
Y
A
A
A
2
2
2
1
OE
2
2
2
1
2
3
2
1
Y
2
OE
2
2
Y
3
40
39
38
37
36
35
34
GND
Y
GND
A
19
20
21
22
23
2
2
2
4
2
2
2
4
5
6
Y
5
A
A
A
Y
Y
6
2
1
2
1
V
CC
V
CC
Y
7
A
7
2
2
2
2
Y
8
A
8
24
25
33
32
31
GND
Y
GND
A
FCT16827-2
26
27
28
2
2
9
TO 9 OTHER CHANNELS
2
2
2
9
Y
10
A
10
30
29
OE
1
OE
2
2
FCT16827-3
Copyright © 2000, Texas Instruments Incorporated
CY74FCT16827T
CY74FCT162827T
Maximum Ratings[2, 3]
Pin Description
(Above which the useful life may be impaired. For user
guidelines, not tested.)
Name
Description
OE
A
Output Enable Inputs (Active LOW)
Data Inputs
Storage Temperature............................... −55°C to +125°C
Ambient Temperature with
Power Applied.......................................... −55°C to +125°C
Y
Three-State Outputs
DC Input Voltage .................................................−0.5V to +7.0V
DC Output Voltage ..............................................−0.5V to +7.0V
Function Table[1]
DC Output Current
Inputs
Outputs
(Maximum Sink Current/Pin) ...........................−60 to +120 mA
OE1
L
OE2
L
A
L
Y
L
Power Dissipation..........................................................1.0W
Static Discharge Voltage............................................>2001V
(per MIL-STD-883, Method 3015)
L
L
H
X
X
H
Z
Z
H
X
Operating Range
X
H
Ambient
Range
Industrial
Temperature
VCC
−40°C to +85°C
5V ± 10%
Electrical Characteristics Over the Operating Range
Parameter
Description
Input HIGH Voltage
Test Conditions
Min.
Typ.[4]
Max.
Unit
VIH
VIL
VH
VIK
IIH
2.0
V
V
Input LOW Voltage
Input Hysteresis[5]
0.8
100
mV
V
Input Clamp Diode Voltage
Input HIGH Current
Input LOW Current
VCC=Min., IIN=−18 mA
VCC=Max., VI=VCC
−0.7
−1.2
±1
µA
µA
µA
IIL
VCC=Max., VI=GND
VCC=Max., VOUT=2.7V
±1
IOZH
High Impedance Output
±1
Current (Three-State Output pins)
IOZL
High Impedance Output
Current (Three-State Output pins)
VCC=Max., VOUT=0.5V
±1
µA
IOS
IO
Short Circuit Current[6]
Output Drive Current[6]
Power-Off Disable
VCC=Max., VOUT=GND
VCC=Max., VOUT=2.5V
VCC=0V, VOUT≤4.5V[7]
−80
−50
−140
−200
−180
±1
mA
mA
µA
IOFF
Output Drive Characteristics for CY74FCT16827T
Parameter
Description
Test Conditions
VCC=Min., IOH=−3 mA
Min.
2.5
Typ.[4]
3.5
Max.
Unit
VOH
Output HIGH Voltage
V
VCC=Min., IOH=−15 mA
VCC=Min., IOH=−32 mA
VCC=Min., IOL=64 mA
2.4
3.5
2.0
3.0
VOL
Output LOW Voltage
0.2
0.55
V
1. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care.Z = HIGH Impedance.
2. Operation beyond the limits set forth may impair the useful life of the device. Unless noted, these limits are over the operating free-air temperature range.
3. Unused inputs must always be connected to an appropriate logic voltage level, preferably either VCC or ground.
4. Typical values are at VCC= 5.0V, TA= +25˚C ambient.
5. This parameter is specified but not tested.
6. Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or sample
and hold techniques are preferable in order to minimize internal chip heating and more accurately reflect operational values. Otherwise prolonged shorting of
a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parametric tests. In any sequence of parameter
tests, IOS tests should be performed last.
7. Tested at +25˚C.
2
CY74FCT16827T
CY74FCT162827T
Output Drive Characteristics for CY74FCT162827T
Parameter
IODL
Description
Output LOW Current[6]
Output HIGH Current[6]
Output HIGH Voltage
Output LOW Voltage
Test Conditions
VCC=5V, VIN=VIH or VIL, VOUT=1.5V
VCC=5V, VIN=VIH or VIL, VOUT=1.5V
VCC=Min., IOH=−24 mA
Min.
60
Typ.[4]
115
Max.
150
Unit
mA
mA
V
IODH
−60
2.4
−115
3.3
−150
VOH
VOL
VCC=Min., IOL=24 mA
0.3
0.55
V
Capacitance[5] (TA = +25˚C, f = 1.0 MHz)
Parameter
CIN
Description
Input Capacitance
Output Capacitance
Test Conditions
Typ.[4] Max.
Unit
VIN = 0V
4.5
5.5
6.0
8.0
pF
pF
COUT
VOUT = 0V
Power Supply Characteristics
Parameter
Description
Test Conditions
VIN<0.2V,
Min.
Typ.[4]
Max.
Unit
ICC
Quiescent Power Supply
Current
VCC=Max.
VCC=Max.
—
—
—
5
500
µA
VIN>VCC−0.2V
VIN=3.4V[8]
∆ICC
Quiescent Power Supply
Current (TTL inputs HIGH)
0.5
60
1.5
mA
ICCD
Dynamic Power Supply
Current[9]
VCC=Max.,
VIN=VCC or
VIN=GND
100
µA/MHz
One Input Toggling,
50% Duty Cycle,
Outputs Open,
OE1=OE2=GND,
IC
Total Power Supply Current[10] VCC=Max.,
f1=10 MHz,
VIN=VCC or
VIN=GND
—
—
0.6
0.9
1.5
2.3
mA
50% Duty Cycle,
VIN=3.4V or
VIN=GND
Outputs Open,
One Bit Toggling,
OE1=OE2=GND
VCC=Max.,
f1=2.5 MHz,
50% Duty Cycle,
Outputs Open,
Twenty Bits Toggling,
OE1=OE2=GND
VIN=VCC or
VIN=GND
—
—
3.0
8.0
5.5[11]
VIN=3.4V or
VIN=GND
20.5[11]
Notes:
8. Per TTL driven input (VIN=3.4V); all other inputs at VCC or GND.
9. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
10. IC
IC
=
=
=
=
=
=
=
=
=
=
IQUIESCENT + IINPUTS + IDYNAMIC
ICC+∆ICCDHNT+ICCD(f0/2 + f1N1)
Quiescent Current with CMOS input levels
Power Supply Current for a TTL HIGH input (VIN=3.4V)
Duty Cycle for TTL inputs HIGH
ICC
∆ICC
DH
NT
ICCD
f0
f1
N1
Number of TTL inputs at DH
Dynamic Current caused by an input transition pair (HLH or LHL)
Clock frequency for registered devices, otherwise zero
Input signal frequency
Number of inputs changing at f1
All currents are in milliamps and all frequencies are in megahertz.
11. Values for these conditions are examples of the ICC formula. These limits are specified but not tested.
3
CY74FCT16827T
CY74FCT162827T
Switching Characteristics Over the Operating Range[12]
CY74FCT16827AT
CY74FCT162827AT
CY74FCT162827BT
Parameter
tPLH
tPHL
Description
Condition[13]
Min.
Max.
Min.
Max.
Unit Fig. No.[13]
Propagation Delay
A to Y
CL=50 pF
RL=500Ω
1.5
8.0
1.5
5.0
ns
ns
ns
ns
1, 3
1, 7, 8
1, 7, 8
—
CL=300 pF
RL=500Ω
1.5
1.5
1.5
1.5
1.5
—
15.0
12.0
23.0
9.0
1.5
1.5
1.5
1.5
1.5
—
13.0
8.0
tPZH
tPZL
Output Enable Time
OE to Y
CL=50 pF
RL=500Ω
CL=300 pF
RL=500Ω
15.0
6.0
tPHZ
tPLZ
Output Disable Time
OE to Y
CL=5 pF
RL=500Ω
CL=50 pF
RL=500Ω
10.0
0.5
7.0
tSK(O)
Output Skew[14]
0.5
CY74FCT16827CT
CY74FCT162827CT
CY74FCT16827ET
CY74FCT162827ET
Parameter
tPLH
tPHL
Description
Condition[12]
Min.
Max.
Min.
Max.
Unit Fig. No.[13]
Propagation Delay
A to Y
CL=50 pF
RL=500Ω
1.5
4.2
1.5
3.2
ns
ns
ns
ns
1, 3
1, 7, 8
1, 7, 8
—
CL=300 pF
RL=500Ω
1.5
1.5
1.5
1.5
1.5
—
10.0
5.6
1.5
1.5
1.5
1.5
1.5
—
7.0
4.8
9.0
4.0
4.0
0.5
tPZH
tPZL
Output Enable Time
OE to Y
CL=50 pF
RL=500Ω
CL=300 pF
RL=500Ω
14.0
5.7
tPHZ
tPLZ
Output Disable Time
OE to Y
CL=5 pF
RL=500Ω
CL=50 pF
RL=500Ω
6.0
tSK(O)
Output Skew[14]
0.5
Notes:
12. Minimum limits are specified but not tested on Propagation Delays.
13. See “Parameter Measurement Information” in the General Information section.
14. Skew between any two outputs of the same package switching in the same direction. This parameter is ensured by design.
4
CY74FCT16827T
CY74FCT162827T
Ordering Information CY74FCT16827
Speed
Package
Name
Operating
Range
(ns)
Ordering Code
Package Type
56-Lead (240-Mil) TSSOP
3.2
CY74FCT16827ETPACT
Z56
O56
Z56
O56
Z56
Industrial
Industrial
Industrial
CY74FCT16827ETPVC/PVCT
CY74FCT16827CTPACT
56-Lead (300-Mil) SSOP
56-Lead (240-Mil) TSSOP
56-Lead (300-Mil) SSOP
56-Lead (240-Mil) TSSOP
4.2
8.0
CY74FCT16827CTPVC/PVCT
CY74FCT16827ATPVC/PVCT
Document #: 38−00393–C
Ordering Information CY74FCT162827
Speed
Package
Name
Operating
Range
(ns)
Ordering Code
74FCT162827ETPACT
CY74FCT162827ETPVC
74FCT162827ETPVCT
74FCT162827CTPACT
CY74FCT162827CTPVC
74FCT162827CTPVCT
CY74FCT162827BTPVC
74FCT162827BTPVCT
CY74FCT162827ATPVC
74FCT162827ATPVCT
Package Type
3.2
Z56
O56
O56
Z56
Z56
Z56
O56
O56
O56
O56
56-Lead (240-Mil) TSSOP
56-Lead (300-Mil) SSOP
56-Lead (300-Mil) SSOP
56-Lead (240-Mil) TSSOP
56-Lead (240-Mil) TSSOP
56-Lead (240-Mil) TSSOP
56-Lead (300-Mil) SSOP
56-Lead (300-Mil) SSOP
56-Lead (300-Mil) SSOP
56-Lead (300-Mil) SSOP
Industrial
4.2
Industrial
5.0
8.0
Industrial
Industrial
5
CY74FCT16827T
CY74FCT162827T
Package Diagrams
56-Lead Shrunk Small Outline Package O56
56-Lead Thin Shrunk Small Outline Package Z56
6
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
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Copyright 2000, Texas Instruments Incorporated
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