PI74LVCC3245AL PERICOM [Pericom Semiconductor Corporation], PI74LVCC3245AL Datasheet

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PI74LVCC3245AL

Manufacturer Part Number
PI74LVCC3245AL
Description
8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
Manufacturer
PERICOM [Pericom Semiconductor Corporation]
Datasheet
Product Features
• 2.7V to 3.6V on A-port and 3V to 5.5V on B-port
• Latch-up performance exceeds 200mA Per JESD78
• ESD protection exceeds JESD22
• Industrial Temperature: –40°C to +85°C
• Packages (Pb-free available):
Logic Block Diagram
Truth Table
Note:
1. H = High Signal Level
X = Don’t Care or Irrelevant
OE
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)
H
L
L
(Pb-free & Green available)
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
Outputs
1
2
3
4
5
6
7
8
Configurable Output Voltage and 3-State Outputs
1
Product Description
Pericom Semiconductor’s PI74LVC series of logic circuits are
produced using the Company’s advanced submicron CMOS tech-
nology, achieving industry leading speed.
The PI74LVCC3245A is a non-inverting 8-bit Bidirectional Trans-
ceiver that uses two seperate power supply rails. A-port (V
to operate at 3.3V and B-port (V
5V. 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
Pin Name
OE
DIR
Ax
Bx
NC
GND
V
CCA
8-Bit Dual Supply Bus Transceiver with
,V
(3.3V) V
CCB
GND
GND
CCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
Description
3-State Output Enable Inputs (Active LOW)
Direction Control Input
Side A Inputs or 3-State Outputs
Side B Inputs or 3-State Outputs
NO Internal Connect
Ground
Power
1
2
3
4
5
6
7
8
9
10
11
12
CCB
PI74LVCC3245A
) is set to operate from 3.3V to
24
23
22
21
20
19
18
17
16
15
14
13
VCCB (3.3V to 5V)
NC
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
PS8702A
CCA
) is set
09/10/03

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PI74LVCC3245AL Summary of contents

Page 1

Product Features • 2.7V to 3.6V on A-port and 3V to 5.5V on B-port • Latch-up performance exceeds 200mA Per JESD78 • ESD protection exceeds JESD22 2000V Human-Body Model (A114-B) 200V Machine Model (A115-A) • Industrial Temperature: –40°C to +85°C ...

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 ............................ (2) Input voltage range I/O ports (A-port) I I/O ports (B-port) Control Pins ................. ...

Page 3

Recommended Operating Conditions Parameter Description V Supply Voltage CCA V Supply Voltage CCB V High-Level Input Voltage IHA V High-Level Input Voltage IHB V Low-Level Input Voltage ILA V Low-Level Input Voltage ILB High-Level Input Voltage V IH (Control Pins) ...

Page 4

DC Electrical Characteristics Parameters Description Minimum High Level V OHA Output Voltage (Port A) Minimum High Level V OHB Output Voltage (Port B) Maximum Low Level V OLA Output Voltage (Port A) Maximum Low Level V OLB Output Voltage (Port ...

Page 5

Capacitance (T = 25°C) A Parameters Description C Control Input Capacitance IN Input/Output Capacitance C I port) Power Dissipation Capaci (7) tance Notes defined as the value of the internal equivalent capacitance ...

Page 6

Power- Up Considerations To avoid excessive supply current, bus contention or oscillation during power-up, the following guidelines should be followed: 1. Connect ground first before any supply voltage is applied. 2. Power which is the control side ...

Page 7

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

Page 8

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

Page 9

Packaging Mechanical: 24-pin TSSOP ( .303 .311 7.7 7.9 .0256 BSC 0.65 Packaging Mechanical: 24-pin QSOP ( .337 .344 .033 0.84 .025 typical 0.635 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Configurable Output Voltage and 3-State Outputs ...

Page 10

... X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Ordering Information Ordering Code PI74LVCC3245AL PI74LVCC3245ALE PI74LVCC3245AQ PI74LVCC3245AS Notes: 1. Thermal characteristics can be found on the company web site at http://www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com Configurable Output Voltage and 3-State Outputs 7.40 .2914 .2992 7.60 0-8˚ ...

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