EZ80L925048MOD Datasheet, PDF (11/38 Pages) Zilog, Inc. – eZ80L92 Module is a compact, high-performance Ethernet module

eZ80L925048MOD
eZ80L92 Module Product Specification
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Table 1. eZ80L92 Module Peripheral Bus Connector Pin Identification*
Pin # Symbol
Pull
Up/Down* Signal Direction Comments
1
A6
Bidirectional
2
A0
Bidirectional
3
A10
Bidirectional
4
A3
Bidirectional
5
GND
6
V_DD
7
A8
Bidirectional
V_SS/Ground (0 V).
3.3 V Supply Input Pin.
8
A7
Bidirectional
9
A13
Bidirectional
10 A9
Bidirectional
11 A15
Bidirectional
12 A14
Bidirectional
13 A18
Bidirectional
14 A16
Bidirectional
15 A19
Bidirectional
16 GND
17 A2
Bidirectional
V_SS/Ground (0 V).
18 A1
Bidirectional
19 A11
Bidirectional
20 A12
Bidirectional
21 A4
Bidirectional
22 A20
Bidirectional
23 A5
Bidirectional
24 A17
Bidirectional
Notes: *External capacitive loads on RD, WR, IORQ, MREQ, D0–D7 and A0–A23 should be below 10 pF to satisfy
timing requirements for the eZ80^® CPU.
All unused inputs should be pulled to either V_DD or GND, depending on their inactive levels to reduce power
consumption and to reduce noise sensitivity.
To prevent EMI, the EZ80CLK output can be deactivated via software in the eZ80L92 Peripheral Power-Down
Register.
All inputs are CMOS level 3.3 V (5 V tolerant), except where otherwise noted.
PS017005-0903
PRELIMINARY
Pin Description