NS486SXF Datasheet, PDF (20/44 Pages) National Semiconductor (TI) – NS486TMSXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems

3 0 Device Specifications (Continued)
3 1 4 4 AUXILIARY PROCESSOR INTERFACE
Symbol
V_OH
V_OL
Parameter
Output High Voltage
Output Low Voltage
Condition
I_OH e b6 mA on EACK
I_OH e b4 mA on DRV EREQ
I_OL e 6 mA on EACK
I_OL e 4 mA on DRV EREQ
3 1 4 5 HP-SIR UART
Symbol
V_OH
V_OL
Parameter
Output High Voltage
Output Low Voltage
Condition
I_OH e b100 mA
I_OH e b6 mA on Tx UCLK Rx
I_OL e 100 mA
I_OL e 6 mA on Tx UCLK Rx
3 1 4 6 EXTERNAL BUS CONTROL
Symbol
V_OH
V_OL
Parameter
Output High Voltage
Output Low Voltage
Condition
I_OH e b12 mA on
IOR IOW MEMR MEMW
RESET RESET CS16 BHE
CS16 - min 10 kX pullup
I_OL e 12mA on
IOR IOW MEMR MEMW
RESET RESET CS16 BHE
Min
Max
Unit
Notes
24
V
04
V
Min
Max
Unit
Notes
V_CC b 0 2
V
24
V
02
V
04
V
Min Max Unit Notes
24
V
04
V
3 1 4 7 OSCILLATOR (CPUX1 CLK)
Symbol
Parameter
Condition
Min
V_OH
Output High Voltage
I_OH e b12 mA on SYSCLK
24
V_OL
Output Low Voltage
I_OL e 12 mA on SYSCLK
V_IH
OSCX1 Input High Voltage
24
V_IL
OSCX2 Input Low Voltage
3 1 4 8 LCD INTERFACE
Symbol
V_OH
V_OH
V_OL
Parameter
Output High Voltage
Output High Voltage
Output Low Voltage
Condition
I_OH e b2 6 mA on
LCD 3 0 CL1 CL2 CLF
I_OH e b6 mA on
LCD 3 0 CL1 CL2 CLF
I_OL e 6 mA on
LCD 3 0 CL1 CL2 CLF
Min
V_CC b 0 8
24
Max
04
04
Max
04
Unit
V
V
V
Unit
V
V
V
Notes
OSCX2 is
the output
Notes
CMOS Level
TTl Level
http www national com
20