Circuit Description
5-28
3/03
WorkCentre Pro 412, FaxCentre F12 &
WorkCentre M15/M15i
Pin Classification and Loading
• I: Input
• O: Output
• 3S: Tri-state output
• OD:Open drain output
• P:Power supply
Combinations indicate bidirectional pins.
An “H” in the Resistor column indicates the pad has an internal pull-up resistor. A tilde (~) indicates no
internal resistor.
Name
Pins
Level
Resi
stor
Type
Abbreviation/Description
Maximum Loading
Cap.
(pF)
Current (mA)
Vol
Voh
RD
1
L
~
I
Command Port Read
~
~
~
RD [7:0]
8
H
H
1/3S
RAM Data
50
4
4
RE [1:0]
2
L
~
O
RAM Enable
50
4
4
RESET
1
L
H
I
Chip Reset
~
~
~
TESTIN
1
H
~
I
Test Input
~
~
~
TEST-
OUT
1
H
O
Manufacturing Test Output
~
~
~
VDD
22
N/A
~
P
Power Supply Source
~
~
~
VDDBIA
S
1
N/A
Input Reference Voltage
WR
1
L
~
I
Command Port Write
~
~
~
RAMWR
I
L
~
I
RAM Write Enable
50
4
4
RD
1
L
~
I
Command Port Read
~
~
~
RD [7:0]
8
H
H
1/3S
RAM Data
50
4
4
RE [1:0]
2
L
~
O
RAM Enable
50
4
4
Summary of Contents for FaxCentre F12
Page 8: ...Table of Contents TOC 6 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 44: ...Circuit Description 5 6 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 45: ...Circuit Description WorkCentre Pro 412 FaxCentre F12 3 03 5 7 WorkCentre M15 M15i ...
Page 46: ...Circuit Description 5 8 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 47: ...Circuit Description WorkCentre Pro 412 FaxCentre F12 3 03 5 9 WorkCentre M15 M15i ...
Page 48: ...Circuit Description 5 10 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 49: ...Circuit Description WorkCentre Pro 412 FaxCentre F12 3 03 5 11 WorkCentre M15 M15i ...
Page 50: ...Circuit Description 5 12 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 170: ...Disassembly and Reassembly 6 58 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 380: ...XEROX EUROPE ...