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Low Voltage Transceiver/Register with 5V Tolerant Inputs and Outputs (Preliminary)



Fairchild Semiconductor 로고
Fairchild Semiconductor
74LCX32652GX 데이터시트, 핀배열, 회로
Preliminary
August 2001
Revised August 2001
74LCX32652
Low Voltage Transceiver/Register
with 5V Tolerant Inputs and Outputs (Preliminary)
General Description
The LCX32652 contains thirty-two non-inverting bidirec-
tional bus transceivers with 3-STATE outputs providing
multiplexed transmission of data directly from the input bus
or from the internal registers. Data on the A or B bus will be
clocked into the registers as the appropriate clock pin goes
to the HIGH logic level. Each byte has separate control
inputs which can be shorted together for full 32-bit opera-
tion. Output Enable pins (OEABn, OEBAn) are provided to
control the transceiver function (see Functional Descrip-
tion).
The LCX32652 is designed for low-voltage (2.5V or 3.3V)
VCC applications with capability of interfacing to a 5V signal
environment.
The LCX32652 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
s 5V tolerant inputs and outputs
s 2.3V–3.6V VCC specifications provided
s 5.7 ns tPD max (VCC = 3.3V), 20 µA ICC max
s Power down high impedance inputs and outputs
s Supports live insertion/withdrawal (Note 1)
s ±24 mA output drive (VCC = 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
s Packaged in plastic Fine-Pitch Ball Grid Array (FBGA)
(Preliminary)
Note 1: To ensure the high-impedance state during power up or down, OE
should be tied to VCC and OE tied to GND through a resistor: the minimum
value or the resistor is determined by the current-sourcing capability of the
driver.
Ordering Code:
Order Number Package Number
Package Description
74LCX32652GX
(Note 2)
BGA114A
114-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
(Preliminary) [TAPE and REEL]
Note 2: BGA package available in Tape and Reel only.
© 2001 Fairchild Semiconductor Corporation DS500634
www.fairchildsemi.com


74LCX32652GX 데이터시트, 핀배열, 회로
Connection Diagram
Pin Assignment for FBGA
(Top Thru View)
Preliminary
Pin Descriptions
Pin Names
Description
1A0 - 1A15
Data Register A Inputs/3-STATE Outputs
2A0 - 2A15
1B0 - 1B15
Data Register B Inputs/3-STATE Outputs
2B0 - 2B15
CPABn, CPBAn Clock Pulse Inputs
SABn, SBAn
Select Inputs
OEABn, OEBAn Output Enable Inputs
NC No Connect
FBGA Pin Assignments
12 3 4 56
A 1A0 SAB1 CPAB1 CPBA1 SBA1 1B0
B 1A2 1A1 OEAB1 OEBA1 1B1 1B2
C 1A4 1A3 GND GND 1B3 1B4
D 1A6 1A5 VCC VCC 1B5 1B6
E 1A8 1A7 GND GND 1B7 1B8
F 1A10 1A9 GND GND 1B9 1B10
G 1A12 1A11 VCC VCC 1B11 1B12
H 1A13 1A14 GND GND 1B14 1B13
J 1A15 SAB2 CPAB2 CPBA2 SBA2 1B15
K NC CPAB3 OEAB2 OEBA2 CPBA3 NC
L 2A0 SAB3 OEAB3 OEBA3 SBA3 2B0
M 2A2 2A1 GND GND 2B1 2B2
N 2A4 2A3 VCC VCC 2B3 2B4
P 2A6 2A5 GND GND 2B5 2B6
R 2A8 2A7 GND GND 2B7 2B8
T
2A10 2A9
VCC
VCC
2B9 2B10
U 2A12 2A11 GND GND 2B11 2B12
V 2A13 2A14 CPAB4 CPBA4 2B14 2B13
W 2A15 SAB4 OEAB4 OEBA4 SBA4 2B15
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Low Voltage Transceiver/Register with 5V Tolerant Inputs and Outputs (Preliminary) - Fairchild Semiconductor