SCANH162602SM ,Low Voltage Universal 16-bit IEEE 1149.1 Bus Transceiver with TRI-STATE Outputsapplicationsmentary to allow direction control with a single R/W line andn Power down high Impedanc ..
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SCAN16602SM-SCANH162602SM
Low Voltage Universal 16-bit IEEE 1149.1 Bus Transceiver with TRI-STATE Outputs
SCAN16602
Low Voltage Universal 16-bit IEEE 1149.1 Bus
Transceiver with TRI-STA TE® Outputs
General DescriptionThe SCAN16602isa high speed, low-power universal bus
transceiver featuring data inputs organized into two 8-bit
bytes with separate output enable and latch enable control
signals. The byte-wide output enable controls are compli-
mentaryto allow direction control witha single R/W line and additional logic. This functionis configurableasa D-type
Latchor Flip-Flop, and can operatein transparent, latched, clocked mode. This deviceis compliant with IEEE 1149.1
Standard Test Access Port and Boundary Scan Architecture
with the incorporationof the defined boundary-scan test
logic and test access port consisting ofTest Data Input (TDI),
Test Data Out (TDO), Test Mode Select (TMS), Test Clock
(TCK), and Test Reset (TRST).
Features IEEE 1149.1 (JTAG) Compliant 2.7Vto 3.6V VCC Operation TRI-STATE outputsfor bus-oriented applications Dual byte-wide datafor bus applications Power down high Impedance inputs and outputs Optional Bus Holdon data inputs eliminatesthe need
for external pullup/pulldown resistors (SCANH16602,
SCANH162602 versions) Optional 25Ω series resistorsin outputsto minimize
noise and eliminate termination resistors (SCAN162602,
SCANH162602 versions) Supports live insertion/withdrawal Includes CLAMP and HIGHZ instructions
Block DiagramJuly 2003
SCAN16602
Low
oltage
Universal
16-bit
IEEE
Bus
ransceiver
with
TRI-ST
