PI74LVTC16245 Datasheet, PDF (1/8 Pages) Pericom Semiconductor Corporation – 3.3V 16-Bit Bi-Directional Transceiver with 3-State Outputs

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3.3V 16-Bit Bi-Directional Transceiver
with 3-State Outputs
Product Features
• Advanced low power CMOS design for 2.7V to 3.6V
Vcc operation
• Supports 5V input/output tolerance in mixed signal mode
operation
• Function compatible with LVT family of products
• Balanced ±24mA output drive
• Typical V_OLP (Output Ground Bounce) <0.8V at V_CC=3.3V,
T_A=25°C
• I_off and Power Up/Down 3-State support live insertion
• Latch-up performance exceeds 200mA Per JESD78
• ESD protection exceeds JESD 22
- 2000V Human-Body Model (A114-B)
- 200V Machine Model (A115-A)
• Available Packages (Pb-free Available):
- 48-pin 240-mil wide plastic TSSOP (A48)
- 48-pin 300-mil wide plastic SSOP (V48)
• Industrial Temperature -40°C to +85°C
Logic Block Diagram
1
1DIR
1A0 ⁴⁷
1A1 ⁴⁶
1A2 ⁴⁴
1A3 ⁴³
1A4 ⁴¹
1A5 ⁴⁰
1A6 ³⁸
1A7 ³⁷
48 _1OE
2 _1B0
3 _1B1
5 _1B2
6 _1B3
8 _1B4
9 _1B5
11 _1B6
12 _1B7
Product Description
Pericom Semiconductor’s PI74LVTC series of logic circuits are
produced using the Company’s advanced submicron CMOS tech-
nology, achieving industry leading speed.
The PI74LVTC16245 is a non-inverting 16-bit Bidirectional Trans-
ceiver designed for low-voltage 2.7V to 3.6V V_CC operation, with the
capability of interfacing to the 5V system environment. This
tranceiver is designed for asynchronous two-way communication
between data buses. The direction control input pin (xDIR) deter-
mines the direction of the data flow through the bidirectional
transceiver. The Direction and Output Enable controls are designed
to operate this device as either two independent 8-bit tranceivers
or one 16-bit transceiver. The output enable (xOE) input, when
HIGH, disables both A and B ports by placing them in
HIGH Z condition.
When Vcc is between 0 to 1.5V during power up or power down, the
outputs of the device are in the high-impedance state. To ensure
the high-impedance state above1.5V, OE should be tied to Vcc
through a pullup resistor; the minimum value of the resistor is
determined by the current sinking capability of the driver.
The device fully supports live-insertion with its I_off and power-up/
down 3-state. The I_off circuitry disables the outputs when the power
is off, preventing the backflow of damaging current through the
device. Power-up/down 3-state places the outputs in the
high-impedance state during power up or power down, preventing
driver conflict.
24
2DIR
2A0 ³⁶
2A1 ³⁵
2A2 ³³
2A3 ³²
2A4 ³⁰
2A5 ²⁹
2A6 ²⁷
2A7 ²⁶
25 _2OE
13 _2B0
14 _2B1
16 _2B2
17 _2B3
19 _2B4
20 _2B5
22 _2B6
23 _2B7
1
PS 8651A
05/19/03