概述
数据手册PI74LCX16646A 概述
Dual 8-bit Bus Transceiver
双8位总线收发器\n
PI74LCX16646A 数据手册
通过下载PI74LCX16646A数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载PI74LCX16646
Fast CMOS 3.3V
16-Bit Registered Transceivers
Product Features
ProductDescription
FunctionallycompatiblewithFCT3,LVT,and74
series 16646 families of products
Pericom Semiconductors PI74LCX series of logic circuits are
produced using the Companys advanced 0.6 micron CMOS
technology, achieving industry leading speed grades.
Tri-State outputs
ThePI74LCX16646isa16-bitnon-inverting,bidirectionalregistered
bustransceiverorganizedastwoindependent8-bitbustransceivers
designedwith3-stateD-typeflip-flopsandcontrolcircuitryarranged
for multiplexed transmission of data directly from the data bus or
fromtheinternalstorageregisters.Each8-bittransceiverutilizesthe
enable control (xOE) and direction pins (xDIR) to control the
transceiverfunctions.TheSelect(xSABandxSBA)controlpinsare
used to select either real-time or stored data transfer. The circuitry
usedforselectcontrolwilleliminatethetypicaldecodingglitchthat
occurs in a multiplexer during the transition between real-time and
stored data. A low input level selects real-time data and a high
selects stored data.
5V Tolerant inputs and outputs
2.0V-3.6V VCC supply operation
Balanced sink and source output drives (24 mA)
Low ground bounce outputs
Supports live insertion
ESD Protection exceeds 2000V, Human Body Model
200V, Machine Model
Packages available:
56-pin240-milwideplasticTSSOP(A)
56-pin300-milwideplasticSSOP(V)
ThePI74LCX16646canbedrivenfromeither3.3Vor5.0Vdevices
allowing this device to be used as a translator in a mixed
3.3/5.0Vsystem.
Logic Block Diagram
1OE
2OE
1DIR
2DIR
1CLKBA
1SBA
2CLKBA
2SBA
1CLKAB
1SAB
2CLKAB
2SAB
B REG
D
B REG
D
C
C
1A0
2A0
A REG
A REG
D
1B0
2B0
D
C
C
TO 7 OTHER CHANNELS
TO 7 OTHER CHANNELS
PS2093A 02/12/97
1
PI74LCX16646
16-BIT REGISTERED TRANSCEIVERS
Product Pin Description
Product Pin Configuration
Pin Name
Description
1
DIR
CLKAB
SAB
GND
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
1
1
1
OE
xOE, xDIR
xCLKAB, xCLKBA
xSAB, xSBA
xAx
Output Enable Inputs (Active LOW)
Clock Pulse Inputs
2
1
CLKBA
SBA
3
1
Output Data Source Select Inputs
GND
4
Data Register A Inputs
Data Register B Outputs
1
A
A
1
2
1
B
B
1
2
5
1
1
6
xBx
Data Register B Inputs
Data Register A Outputs
V
CC
V
1
CC
7
GND
Ground
Power
1A
1A
1A
3
4
5
8
B
3
4
5
VCC
9
1B
1B
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
GND
GND
1A
1A
1A
6
7
8
1B
1B
1B
6
7
8
56-PIN
V56
A56
2A
1A
1A
1
2
3
2B
2B
2B
1
2
3
GND
GND
2A
2A
2A
4
5
6
2B
2B
2B
8
7
6
V
CC
V
2
CC
2
A
A
7
8
B
7
8
2
2B
GND
GND
2SAB
2
2
2
SBA
2
CLKAB
CLKBA
OE
2
DIR
Truth Table(2)
Inputs
xCLKAB
Data I/O(1)
Function
xOE
xDIR
xCLKBA
xSAB xSBA
xAx
xBx
Isolation
Store A and B Data
H
H
X
X
H or L
H or L
X
X
X
X
Input
Input
↑
↑
Real Time B Data to A Bus
Stored B Data to A Bus
L
L
L
L
X
X
X
H or L
X
X
L
H
Output
Input
Input
Real Time A Data to B Bus
Stored A Data to B Bus
L
L
H
H
X
H or L
X
X
L
H
X
X
Output
Notes:
1. The data output functions may be enabled or disabled by various signals at the xOE or xDIR inputs. Data input functions are
always enabled, i.e., data at the bus pins will be stored on every LOW-to-HIGH transition on the clock inputs.
2. H = High Voltage Level, X = Don't Care,
L = Low Voltage Level, ↑ = LOW-to-HIGH Transition
PS2093A 02/12/97
2
PI74LCX16646
16-BIT REGISTERED TRANSCEIVERS
REAL-TIME TRANSFER
BUS A TO B
REAL-TIME TRANSFER
BUS B TO A
BUS
A
BUS
B
BUS
A
BUS
B
xDIR
xOE
CLKAB CLKBA xSAB xSBA
xDIR
xOE
CLKAB CLKBA xSAB xSBA
L
L
X
X
X
L
H
L
X
X
L
X
STORAGE FROM
A AND/OR B
TRANSFER STORES
DATA TO A AND/OR B
BUS
BUS
B
BUS
A
BUS
B
A
xDIR
H
L
xOE
L
L
CLKAB CLKBA xSAB xSBA
xDIR(1)
xOE
L
L
CLKAB CLKBA xSAB xSBA
↑
X
↑
X
↑
↑
X
X
X
X
X
X
L
H
X
H or L
X
X
H
H
X
H or L
X
H
Note:
1. Cannot transfer data to A bus and B bus simultaneously.
PS2093A 02/12/97
3
PI74LCX16646
16-BIT REGISTERED TRANSCEIVERS
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Storage Temperature.............................................................. 65°C to +150°C
Ambient Temperature with Power Applied............................. 40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc 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
Stresses greater than those listed under
MAXIMUMRATINGSmaycausepermanentdam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions above those indicated in the opera-
tional sections of this specification is not implied.
Exposuretoabsolutemaximumratingconditionsfor
extended periods may affect reliability.
Recommended Operating Conditions
Symbol
Parameter
Min.
2.0
1.5
0
Max.
3.6
Units
VCC
Supply Voltage
Operating
Data Retention
3.6
VI
Input Voltage
5.5
V
V
O
Output Voltage
HIGH or LOW State
TRI-State
0
V
CC
0
5.5
±24
±12
+85
10
I
OH/IOL
Output Current
V
CC = 3.0V-3.6V
CC = 2.7V
mA
V
TA
Free-Air Operating Temperature
Input Edge Rate
−40
°C
V = 0.8V-2.0V, VCC = 3.0V
0
ns/V
∆
t/∆V
PS2093A 02/12/97
4
PI74LCX16646
16-BIT REGISTERED TRANSCEIVERS
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.
2.0
Typ(2)
Max.
Units
V
IH
IL
OH
Input HIGH Voltage
Input LOW Voltage
Output HIGH Voltage
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
0.8
V
VCC = 2.7-3.6
IOH = 0.1mA
VCC-0-
.2
V
CC = 2.7
I
OH = 12mA
OH = 18mA
OH = 24mA
OL = 0.1mA
OL = 12mA
OL = 16mA
OL = 24mA
2.2
2.4
2.2
-0.7
VCC = 3.0
I
V
I
VOL
Output LOW Voltage
VCC = 2.7-3.6
I
0.2
0.4
0.4
0.55
-1.2
±5
VCC = 2.7
I
VCC = 3.0
I
I
V
IK
Clamp Diode Voltage
Input Leakage Current
Tri-State Output Leakage
VCC = Min., IIN = 18mA
I
I
0 £ V
I
£ 5.5V
£ 5.5V
Vcc = 2.7-3.6
CC = 2.7-3.6
IOZ
0 £ V
O
V
±5
V
I
= VIH or VIL
CC = 0V, VIN or VOUT ≤ 5.5V
CC = Max.
CC = Max.
I
OFF
Power Down Disable
V
0.1
¾
10
10
µA
I
CC
Quiescent Power Supply Current
V
V
IN = GND or VCC
Quiescent Power Supply Current
TTL Inputs HIGH
V
V
IN = VCC 0.6V(3)
500
∆ICC
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input; all other inputs at VCC or GND.
Capacitance
Parameters Description
Test Conditions
Typ.
7
Units
C
IN
OUT
PD
Input Capacitance
V
V
V
CC = Open, V
CC = 3.3V, V
CC = 3.3V, V
I
= 0V or VCC
C
Output Capacitance
I
= 0V or VCC
8
pF
C
Power Dissipation Capacitance
I
= 0V or VCC, F = 10 MHz
20
PS2093A 02/12/97
5
PI74LCX16646
16-BIT REGISTERED TRANSCEIVERS
Switching Characteristics over Operating Range
VCC = 3.3V ± 0.3V
VCC = 2.7V
Parameters Description
fmax Maximum Clock Frequency
Conditions
Min.
Max.
Min.
Max.
Units
CL
= 50pF
170
1.5
RL
= 500Ω
t
PHL
Propagation Delay
Bus to Bus
5.0
6.0
6.0
7.5
6.0
1.5
1.5
1.5
1.5
1.5
6.0
7.0
7.0
8.5
7.0
tPLH
t
PHL
Propagation Delay
Clock to Bus
1.5
1.5
1.5
1.5
tPLH
t
PHL
Propagation Delay
Select to Bus
tPLH
tPZL
Output Enable Time
ns
tPZH
tPLZ
Output Disable Time
tPHZ
t
S
Setup Time
Hold Time
Pulse Width
2.5
1.5
3.0
2.5
1.5
3.0
tH
tW
tSK(O)
Output to Output Skew(1)
1.0
Note:
1. Skew between any two outputs, of the same package, switching in the same direction.
This parameter is guaranteed by design.
Dynamic Switching Characteristics (TA = +25°C)
Parameters Description
Test Conditions(1)
Typ.
Units
V
CC = 3.3V, C
L
= 50 pF
V
OLP
Dynamic LOW Peak Voltage
Dynamic LOW Valley Voltage
VIH = 3.3V, VIL = 0V
0.8
V
VCC = 3.3V, C = 50 pF
L
VOLV
VIH = 3.3V, VIL = 0V
Note:
1. Measured with n1 outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in
the LOW state.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
PS2093A 02/12/97
6
PI74LCX16646A 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| PI74LCX16646AX | PERICOM | Registered Bus Transceiver, LVC/LCX/Z Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56, 0.240 INCH, PLASTIC, TSSOP-56 | 获取价格 |
|
| PI74LCX16646V | ETC | Dual 8-bit Bus Transceiver | 获取价格 |
|
| PI74LCX16646VX | PERICOM | Registered Bus Transceiver, LVC/LCX/Z Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56, 0.300 INCH, PLASTIC, SSOP-56 | 获取价格 |
|
| PI74LCX16652 | ETC | Logic | 16-Bit Registered Transceiver | 获取价格 |
|
| PI74LCX16652A | PERICOM | Registered Bus Transceiver, LVC/LCX/Z Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56, 0.240 INCH, 1.10 MM HEIGHT, 0.50 MM PITCH, PLASTIC, TSSOP-56 | 获取价格 |
|
| PI74LCX16652AX | PERICOM | Registered Bus Transceiver, LVC/LCX/Z Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56, 0.240 INCH, 1.10 MM HEIGHT, 0.50 MM PITCH, PLASTIC, TSSOP-56 | 获取价格 |
|
| PI74LCX16652V | ETC | Dual 8-bit Bus Transceiver | 获取价格 |
|
| PI74LCX16652VX | PERICOM | Registered Bus Transceiver, LVC/LCX/Z Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56, 0.300 INCH, 0.635 MM PITCH, PLASTIC, SSOP-56 | 获取价格 |
|
| PI74LCX1673A | PERICOM | Fast CMOS 3.3V 16-Bit Transparent Latch | 获取价格 |
|
| PI74LCX16827 | ETC | Logic | 20-Bit Buffer | 获取价格 |
|
PI74LCX16646A 相关文章
强制中企出售股权，英国半导体领域渐成中企投资禁区
- 2024-11-08
- 22
台积电拟对大陆AI公司禁运7nm及以下工艺，引发业界关注
- 2024-11-08
- 15
锐成芯微推出基于8nm工艺的PVT Sensor IP，引领芯片技术创新
- 2024-11-08
- 16
苹果与富士康接洽，商讨在中国台湾生产AI服务器
- 2024-11-08
- 14
