ST18AU1_DS View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST18AU1_DS' PDF : 87 Pages View PDF
ST18-AU1
2 PIN DESCRIPTIONS
The following tables detail the ST18-AU1 pin set. There is one table for each group of pins.
The tables detail the pin name, type and a short description of the pin function.
Signal names have a bar above if they are active low, otherwise they are active high.
Table 2.1 Direct I bus extension (35 pins)
Pin name
IDE0-15
IAE0-15
IRDE
IWRE
IBSE
Type
I/O
O
O
O
O
Description
Instruction data extension bus.
Instruction address extension bus.
I-extension bus read strobe. Active low.
I-extension bus write strobe. Active low.
I-extension bus strobe. Active low. Asserted at the beginning of I-bus read/
write cycle.
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