PI5C34X383B [PERICOM]
Bus Exchanger, CBT/FST/QS/5C/B Series, 1-Func, 32-Bit, True Output, CMOS, PDSO80, 0.150 INCH, PLASTIC, BQSOP-80;
| 型号： | PI5C34X383B |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Bus Exchanger, CBT/FST/QS/5C/B Series, 1-Func, 32-Bit, True Output, CMOS, PDSO80, 0.150 INCH, PLASTIC, BQSOP-80 光电二极管 逻辑集成电路 |
| 文件： | 总5页 (文件大小：57K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C34X383/PI5C34X2383
32-Bit BusSwitch/Exchange
Product Features:
• Near-zero propagation delay
Product Description:
Pericom Semiconductor’s PI5C series of logic circuits are pro-
duced in the Company’s advanced 0.8 micron CMOS technology,
achieving industry leading performance.
• Low noise, 25Ω version (PI5C32383)
• 5Ω switches connect inputs to outputs (PI5C3383)
•
•
Direct bus connection when switches are ON
The PI5C34X383 and PI5C34X2383 are 32-bit bus switches with
exchange designed with a low ON resistance allowing inputs to be
connected directly to outputs. The bus switch creates no additional
propagationaldelayoradditionalgroundbouncenoise.Theswitches
are turned ON by the Bus Enable (BE) input signal, and the Bus
Exchange (BX) input signal offers nibble swapping of the AB and
CD pairs of signals. This exchange configuration allows byte
swapping of buses in systems. It can also be used as a quad
2-to-1 multiplexer and to create low delay barrel shifters, etc. The
PI5C34X2383 is designed with an internal 25Ω resistor reducing
noise reflection in high-speed applications.
Ultra-low quiescent power (0.2 µA typical) – Ideally
suited for notebook applications
• Packages available:
– 80-pin 150-mil wide plastic QSOP (B)
Logic Block Diagram
A
4
4
C
4
4
A
0
0
C
0
0
D
B
D
B
Applications:
16-wide 2:1 MUX, Byte Swapping, and Hot Insertion.
Truth Table(1)
A
7
7
C
7
7
A
3
3
C
3
3
Function
Disconnect
Connect
BEN
H
BXn
X
A0-A15
Hi-Z
B0-B15
Hi-Z
B
D
B
D
L
L
C0-C15
D0-D15
D0-D15
C0-C15
Exchange
L
H
Note: 1. H = High Voltage Level, X = Don’t Care,
L = Low Voltage Level, Hi-Z = High Impedance
BX1
BE1
BX2
BE2
A
12
12
C
12
12
A
8
8
C
8
8
D
B
D
B
A
15
15
C
15
15
A
11
11
C
11
11
B
D
B
D
BX1
BE1
BX2
BE2
PS8120
08/6/97
203
PPI5C34X383/PI5C34X2383
32-BIT BusSwitch/EXCHANGE
Product Pin Configuration
Product Pin Description
Pin Name
BEn
BXn
Ax
Description
Bus Enable Input (Active LOW)
80
79
78
77
76
75
74
73
72
71
70
69
BE1
1
2
3
4
5
6
7
8
9
Vcc
Bus Exchange Input
Bus A
C0
A0
B0
D0
D3
Bx
Bus B
B
A
3
3
Cx
Bus C
Dx
Bus D
C3
GND
VCC
Ground
C1
A1
B1
D1
D2
Power
B
A
2
2
C2
GND 10
BE2 11
BX1
Vcc
C4
A4
B4
D4
12
13
14
15
16
17
18
19
D7
68
67
B
A
7
7
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
C7
C5
A5
B5
D5
D6
B
A
6
6
80-Pin
B80
C6
GND 20
BE3 21
BX2
Vcc
C8
A8
B8
22
23
24
25
26
27
28
29
D11
B11
A11
C11
D10
D8
C9
A9
B
A
10
10
B
9
9
D
C10
GND 30
BE4 31
BX3
Vcc
50
C
12
32
33
34
35
36
37
38
39
D
15
15
15
49
48
47
A12
B12
D12
B
A
46
45
44
43
42
41
C
15
14
D
C13
A13
B13
D13
B
A
14
14
C14
BX
4
GND 40
PS8120
08/6/97
204
PI5C34X383/PI5C34X2383
32-BIT BusSwitch/EXCHANGE
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Stresses greater than those listed under MAXI-
MUM RATINGS may cause permanent damage to
the device. This is a stress rating only and func-
tional operation of the device at these or any other
conditions above those indicated in the operational
sections of this specification is not implied. Expo-
sure to absolute maximum rating conditions for
extended periods may affect reliability.
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 ...................................................................................................... 0.5W
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5V ±5%)
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
VIH
VIL
IIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
VCC = Max., VIN = VCC
VCC = Max., VIN = GND
0 - AB, CD - VCC
2.0
–0.5
—
—
—
—
0.8
±1
V
V
Input LOW Voltage
Input HIGH Current
—
µA
µA
µA
V
IIL
Input LOW Current
—
—
±1
IOZH
VIK
IOS
High Impedance Output Current
Clamp Diode Voltage
—
—
±1
VCC = Min., IIN = –18 mA
AB (CD) = 0V, CD (AB) = VCC
—
- 0.7
—
- 1.2
—
Short Circuit Current(3)
Input Hysteresis at Control Pins
Switch On Resistance(4)
100
—
mA
mV
Ω
VH
150
—
RON
VCC = Min., VIN = 0.0V,
ION = 48 mA
PI5C3383
PI5C32383
—
18
5
28
7
40
VCC = Min., VIN = 2.4V,
ION = 15 mA
PI5C3383
PI5C32383
—
18
10
35
15
48
Ω
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5)
Description
Test Conditions
Typ
Max.
Units
CIN
Input Capacitance
VIN = 0V
VIN = 0V
—
—
6
6
pF
pF
COFF
AB/CD Capacitance, Switch Off
CON
AB/CD Capacitance, Switch On
VIN = 0V
—
8
pF
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 = 5.0V, TA = 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. Measured by the voltage drop between AB and CD pin at indicated current through the switch. ON resistance is determined by
the lower of the voltages on the two (A or B, C or D) pins.
5. This parameter is determined by device characterization but is not production tested.
PS8120
08/6/97
205
PPI5C34X383/PI5C34X2383
32-BIT BusSwitch/EXCHANGE
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
—
—
—
0.1
—
—
3.0
µA
∆ICC
ICCD
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
2.5
mA
Supply Current per
Input per MHz(4)
VCC = Max.,
AB and CD Pins Open
BE = GND
0.25
mA/
MHz
Control Input Toggling
50% Duty Cycle
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V, control inputs only); A, B, C, and D pins do not contribute to Icc.
4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified
frequency. The A, B, C, and D inputs generate no significant AC or DC currents as they transition. This parameter is not tested,
but is guaranteed by design.
PI5C34X383 Switching Characteristics over Operating Range
PI5C34X383
Com
Parameters Description
Conditions(1)
Min
Typ
Max
Unit
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tBX
Propagation Delay(2,3)
Ax to Cx, Bx to Dx
Bus Enable Time
BE to Cx or Dx
Bus Disable Time
BE to Cx or Dx
Bus Exchange Time
BX to Cx or Dx
CL = 50 pF
RL = 500Ω
—
0.25
—
ns
1.5
1.5
1.5
—
—
—
6.5
5.5
6.5
ns
ns
ns
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load
capacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much
smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay
of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction
with the load on the driven side.
PS8120
08/6/97
206
PI5C34X383/PI5C34X2383
32-BIT BusSwitch/EXCHANGE
PI5C34X2383 Switching Characteristics over Operating Range
PI5C34X2383
Com
Parameters Description
Conditions(1)
Min
—
Typ
Max
—
Unit
ns
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tBX
Propagation Delay(2,3)
Ax to Cx, Bx to Dx
Bus Enable Time
BE to Cx or Dx
Bus Disable Time
BE to Cx or Dx
Bus Exchange Time
BX to Cx or Dx
CL = 50 pF
RL = 500Ω
1.25
—
1.5
1.5
1.5
6.5
5.5
6.5
ns
ns
ns
—
—
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load
capacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much
smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay
of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction
with the load on the driven side.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
PS8120
08/6/97
207
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