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PDF SCAN16602 Data sheet ( Hoja de datos )
| Número de pieza | SCAN16602 | |
| Descripción | Low Voltage Universal 16-bit IEEE 1149.1 Bus Transceiver | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SCAN16602 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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July 2003
SCAN16602
Low Voltage Universal 16-bit IEEE 1149.1 Bus
www.datashTeert4au.cnomsceiver with TRI-STATE® Outputs
General Description
The SCAN16602 is a 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-
mentary to allow direction control with a single R/W line and
no additional logic. This function is configurable as a D-type
Latch or Flip-Flop, and can operate in transparent, latched,
or clocked mode. 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), Test Clock
(TCK), and Test Reset (TRST).
Features
n IEEE 1149.1 (JTAG) Compliant
n 2.7V to 3.6V VCC Operation
n TRI-STATE outputs for bus-oriented applications
n Dual byte-wide data for bus applications
n Power down high Impedance inputs and outputs
n Optional Bus Hold on data inputs eliminates the need
for external pullup/pulldown resistors (SCANH16602,
SCANH162602 versions)
n Optional 25Ω series resistors in outputs to minimize
noise and eliminate termination resistors (SCAN162602,
SCANH162602 versions)
n Supports live insertion/withdrawal
n Includes CLAMP and HIGHZ instructions
Block Diagram
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2003 National Semiconductor Corporation DS200518
20051802
www.national.com
1 page  
DC Electrical Characteristics (Continued)
Symbol
Parameter
VCC
(V)
Maximum Low Output Voltage
A and B Ports: SCAN162602 and
SCANH162602 Options (25Ω
www.datasheet4u.comseries resistor options)
IIN Maximum Input Leakage Current
IILR Input Low Current
IOZ Maximum I/O Leakage Current
2.7
3.0
3.6
3.6
3.6
Industrial
TA = −40˚C to +85˚C
Min Max
0.4
0.6
±5.0
-20 -250
±10.0
II(HOLD)
VIKL
IOFF
ICC
ICCt
Bus Hold Input Minimum Drive 2.7 ±35
Hold Current (Note 3)
3.6
Input Clamp Diode Voltage
2.7
Power-off Leakage Current
0.0
Maximum Quiescent Supply
3.6
Current
Maximum ICC Per Input
3.6
Note 3: Applies to devices with Bus Hold feature only.
±500
-1.5
±10.0
20
0.5
Units
Conditions
V VIN = VIL or VIH,
IOL = 4mA
V VIN = VIL or VIH,
IOL = 12mA
µA VI = VCC, GND
µA VIN = GND
µA VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
µA VI = 0.8V or 2.0V
VI = 0 to 3.6V
V IIN = -18mA
µA VO = VCC, GND
µA
mA VI = VCC–0.6V
Noise Specifications
Applies to SCAN16602 and SCANH16602 options, CL = 30pF, RL = 500Ω to GND
Symbol
Parameter
VCC
(V)
VOLP
VOLV
VOHP
VOHV
Quiet Output Maximum Dynamic VOL
(Note 4)
Quiet Output Minimum Dynamic VOL
(Note 4)
Quiet Output Maximum Dynamic VOH
(Note 5)
Quiet Output Minimum Dynamic VOH
(Note 5)
3.3
3.3
3.3
3.3
Industrial
TA = 25˚C
Typical Limits
1.2
-1.5
VOH + 0.9
VOH - 1.5
Units
V
V
V
V
5 www.national.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SCAN16602.PDF ] | |
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