PI74LVC4245ALE Pericom Semiconductor, PI74LVC4245ALE Datasheet

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PI74LVC4245ALE

Manufacturer Part Number
PI74LVC4245ALE
Description
IC TRANSCVR 8BIT N-INV 24TSSOP
Manufacturer
Pericom Semiconductor
Series
74LVCr
Datasheet

Specifications of PI74LVC4245ALE

Logic Function
Translator, 3-State
Number Of Bits
8
Input Type
Voltage
Output Type
Voltage
Number Of Channels
8
Number Of Outputs/channel
1
Differential - Input:output
No/No
Propagation Delay (max)
5.7ns
Voltage - Supply
2.7 V ~ 3.6 V, 4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Supply Voltage
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Rate
-
Product Features
• 4.5V to 5.5V on A-port and 2.7V to 3.6V on B-port
• Latch-up performance exceeds 200mA Per JESD78
• ESD protection exceeds JESD 22
• Industrial Temperature: –40°C to +85°C
• Packaging (Pb-free & Green available):
Logic Block Diagram
Truth Table
Note:
1. H = High Signal Level
– 2000V Human-Body Model (A114-B)
– 200V Machine Model (A115-A)
– 24-pin 173-mil wide plastic TSSOP (L)
– 24-pin 150-mil wide plastic QSOP (Q)
– 24-pin 300-mil wide plastic SOIC (S)
X = Don’t Care or Irrelevant
OE
H
L
L
06-0211
Inputs
DIR
(1)
A
A
A
A
A
A
A
A
1
2
3
4
5
6
7
8
10
3
4
6
5
7
2
8
9
DIR
H
X
L
L = Low Signal Level
Z = High Impedance
Bus B Data to Bus A
Bus A Data to Bus B
18
19
22
20
17
16
21
15
14
Z (Isolation)
B
B
B
B
B
B
B
B
OE
1
2
3
4
5
6
7
8
Outputs
1
Product Description
The PI74LVC4245A is a non-inverting 8-bit Bidirectional Trans-
ceiver that uses two separate power supply rails. A-port (V
is set to operate at 5V and B-port (V
This allows for translation from a 3.3V to a 5V environment and
vice-versa. This tranceiver is designed for asynchronous two-way
communication between data buses. The direction control input pin
(DIR) determines the dataflow from the A bus to the B bus or from
the B bus to the A bus. The output enable (OE) input, when HIGH,
disables both A and B ports by placing them in HIGH Z condi-
tion.
Product Pin Configuration
Product Pin Description
V
Pin Name
CCA
GND
DIR
OE
Ax
Bx
,V
(5V) V
CCB
8-Bit Dual Supply Bus Transceiver
GND
GND
CCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
3-State Output Enable Inputs (Active LOW)
Direction Control Input
Side A Inputs or 3-State Outputs
Side B Inputs or 3-State Outputs
Ground
Power
1
2
3
4
5
6
7
8
9
10
11
12
with 3-State Outputs
Description
CCB
24
23
22
21
20
19
18
17
16
15
14
13
PI74LVC4245A
) is set to operate at 3.3V.
VCCB (3.3V )
VCCB (3.3V )
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
PS8701B
06/05/06
CCA
)

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PI74LVC4245ALE Summary of contents

Page 1

Product Features • 4.5V to 5.5V on A-port and 2.7V to 3.6V on B-port • Latch-up performance exceeds 200mA Per JESD78 • ESD protection exceeds JESD 22 – 2000V Human-Body Model (A114-B) – 200V Machine Model (A115-A) • Industrial Temperature: ...

Page 2

Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Supply voltage range, V and V CCA CCB ............................ (1) Input voltage range I/O ports (A-port) I I/O ports (B-port) Control Pins ................. ...

Page 3

DC Electrical Characteristics A-Port (5V) Param- Description eters Minimum High Level V OH Output Voltage Maximum Low Level V OL Output Voltage Maximum Input Leak- I age Current (Control I Inputs) Maximum 3-State (2) I Output Leakage Current OZ (A ...

Page 4

DC Electrical Characteristics B-Port (3.3V) Parameters Description Minimum High V Level Output Volt- OH age Maximum Low V Level Output Volt- OL age Maximum 3-State (2) I Output Leakage OZ Current (B port) Quiescent V CCB I CCB Supply Current ...

Page 5

AC Electrical Characteristics (Over Recommended Operating Free-Air Temperature Range unless otherwise noted, See Figure 1 and 2) From Parameters (Input) t PHL A t PLH t PHL B t PLH t PZL OE t PZH t PZL OE t PZH ...

Page 6

PARAMETER MEASUREMENT INFORMATION FOR PORT From Output Under Test CL = 50pF 500Ω (See Note A) Load Circuit 1.5V Input t PLH 50% V CCA Output Voltage Waveforms Propagation Delay Times Figure 1. Load Circuit and Voltage ...

Page 7

PARAMETER MEASUREMENT INFORMATION FOR PORT V From Output Under Test 50pF 500Ω (See Note A) Load Circuit 1.5V Input t PLH Output 1.5V Voltage Waveforms Propagation Delay Times Figure 2. Load Circuit and Voltage ...

Page 8

Packaging Mechanical: 24-pin TSSOP (L) �� � ���� ��� ������� ��� ����� ���� ���� ���� ������������������ �������������� ���� Packaging Mechanical: 24-pin QSOP ( .337 .344 .033 0.84 .025 typical 0.635 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 06-0211 ���� ...

Page 9

... X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Ordering Information Ordering Code PI74LVC4245AL PI74LVC4245ALE PI74LVC4245AQ PI74LVC4245AS PI74LVC4245ASE Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • Pb-free & Green • Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0211 ...

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