NS486SXL NSC [National Semiconductor], NS486SXL Datasheet - Page 15

• Manufacturer Part Number: NS486SXL
• Description: Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems
• Manufacturer: NSC [National Semiconductor]

V
V
V
V
V
V
V
V
V
V
V
Symbol
Symbol
Symbol
Symbol
Symbol
DRAM Control Unit
Note 6: Max load RAS1–0. CASH1–0, and CASL1–0 is 63 pF.
Note 7: Max load on WE is 50 pF.
Auxiliary Processor Interface
IrDA Infra Red/UART
External Bus Control
Oscillator (CPUX1/CLK)
Note 8: OSCX2 is the output.
OL
OH
OL
OH
OL
OH
OL
OH
OL
IH
IL
Output Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage
Output Low Voltage
OSCX1 Input High Voltage
OSCX2 Input Low Voltage
Parameter
Parameter
Parameter
Parameter
Parameter
(Continued)
I
RAS1–0, CASH1–0, CASL1–0,
WE (Note 7)
I
I
I
I
I
I
on: Tx, UCLK, Rx
I
I
on: Tx, UCLK, Rx
I
IOR, IOW, MEMR, MEMW
RESET, RESET, CS16, BHE
[CS16 - min. 10 k
I
IOR, IOW, MEMR, MEMW
RESET, RESET, CS16, BHE
I
I
(Note 8)
OL
OH
OH
OL
OL
OH
OH
OL
OL
OH
OH
OH
OH
= 20 mA on:
= −6 mA on: EACK
= −4 mA on: DRV, EREQ
= −100 µA
= 6 mA
= −6 mA on: EACK
= −4 mA on: DRV, EREQ
= −100 µA
= −6 mA
= −12 mA on:
= 12 mA on:
= −12 mA on: SYSCLK
= 12 mA on: SYSCLK
Conditions
15
Conditions
Conditions
Conditions
Conditions
pullup]
V
CC
Min
2.4
- 0.2
Min
Min
Min
Min
2.4
2.4
2.4
2.0
Max
Max
Max
Max
Max
0.4
0.4
0.2
0.4
0.4
0.4
0.4
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Unit
Unit
Unit
Unit
Unit
V
V
V
V
V
V
V
V
V
V
V
V