CP80S54 Datasheet, PDF (3/47 Pages) List of Unclassifed Manufacturers – EPROM/ROM-Based 8-Bit Microcontroller Series

PIN CONNECTION
PDIP, SOP
IOA2 1
IOA3 2
IOA4/T0CKI 3
IOA5/RSTB 4
Vss 5
IOB0/INT 6
IOB1 7
IOB2 8
IOB3 9
CP8054S
CP8054SE
CP8056S
CP8056SE
18 IOA1
17 IOA0
16 IOA7/OSCI
15 IOA6/OSCO
14 Vdd
13 IOB7
12 IOB6
11 IOB5
10 IOB4
CP80S54/56
SSOP
IOA2 1
IOA3 2
IOA4/T0CKI 3
IOA5/RSTB 4
Vss 5
Vss 6
IOB0/INT 7
IOB1 8
IOB2 9
IOB3 10
CP8054S
CP8054SE
CP8056S
CP8056SE
20 IOA1
19 IOA0
18 IOA7/OSCI
17 IOA6/OSCO
16 Vdd
15 Vdd
14 IOB7
13 IOB6
12 IOB5
11 IOB4
PIN DESCRIPTIONS
Name
I/O
Description
IOA0 ~ IOA7 I/O IOA0 ~ IOA7 as bi-direction I/O port, and IOA5 is an input only pin.
IOB0/INT
I/O Bi-direction I/O pin with system wake-up function / External interrupt input
IOB1 ~ IOB7 I/O Bi-direction I/O port with system wake-up function
T0CKI
I ^{Clock input to Timer0. Must be tied to Vss or Vdd, if not in use, to reduce current}
consumption
RSTB
I System clear (RESET) input. This pin is an active low RESET to the device.
OSCI
X’tal type: Oscillator crystal input
I _{RC type: Clock input of RC oscillator}
OSCO
O
X’tal type: Oscillator crystal output.
RC mode: Outputs with the instruction cycle rate
Vdd
- Positive supply
Vss
- Ground
Legend: I=input, O=output, I/O=input/output
Rev0.1 Nov 30, 2005
P.3/CP80S54/S56