SCAN182245A Datasheet, PDF (1/13 Pages) National Semiconductor (TI) – Non-Inverting Transceiver with 25OHM Series Resistor Outputs

December 1993
Revised January 2001
SCAN182245A
Non-Inverting Transceiver
with 25Ω Series Resistor Outputs
General Description
The SCAN182245A is a high performance BiCMOS bidi-
rectional line driver featuring separate data inputs orga-
nized into dual 9-bit bytes with byte-oriented output enable
and direction control signals. This device is compliant with
IEEE 1149.1 Standard Test Access Port and Boundary
Scan Architecture with the incorporation of the defined
boundary-scan test logic and test access port consisting of
Test Data Input (TDI), Test Data Out (TDO), Test Mode
Select (TMS), and Test Clock (TCK).
Features
s High performance BiCMOS technology
s 25Ω series resistors in outputs eliminate the need for
external terminating resistors
s Dual output enable control signals
s 3-STATE outputs for bus-oriented applications
s 25 mil pitch SSOP (Shrink Small Outline Package)
s IEEE 1149.1 (JTAG) Compliant
s Includes CLAMP, IDCODE and HIGHZ instructions
s Additional instructions SAMPLE-IN, SAMPLE-OUT and
EXTEST-OUT
s Power Up 3-STATE for hot insert
s Member of Fairchild’s SCAN Products
Ordering Code:
Order Number
Package
Number
Package Description
SCAN182245ASSC
MS56A
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide
SCAN182245AMTD
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
A1_(0–8)
B1_(0–8)
A2_(0–8)
B2_(0–8)
G1, G2
DIR1, DIR2
Description
Side A1 Inputs or 3-STATE Outputs
Side B1 Inputs or 3-STATE Outputs
Side A2 Inputs or 3-STATE Outputs
Side B2 Inputs or 3-STATE Outputs
Output Enable Pins (Active LOW)
Direction of Data Flow Pins
© 2001 Fairchild Semiconductor Corporation DS011657
www.fairchildsemi.com