CTM8B556EP Просмотр технического описания (PDF) - CERAMATE TECHNICAL
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CTM8B556EP Datasheet PDF : 23 Pages
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1.0 PIN CONNECTION
CTM8B54E/55E/56E/57E
EPROM-Based 8-Bit CMOS Microcontroller
PA2 1
18 PA1
PA3 2
17 PA0
T0CKI 3
16 OSCI
MCLR/Vpp 4
15 OSCO
Vss 5 CTM8B54E 14 Vdd
PB0 6 CTM8B56E 13 PB7
PB1 7
12 PB6
PB2 8
11 PB5
PB3 9
10 PB4
T0CKI 1
Vdd 2
N/C 3
Vss 4
N/C 5
PA0 6
PA1
PA2
7
8
CTM8B55E
CTM8B57E
PA3 9
PB0 10
PB1 11
PB2 12
PB3 13
PB4 14
28 MCLR/Vpp
27 OSCI
26 OSCO
25 PC7
24 PC6
23 PC5
22 PC4
21 PC3
20 PC2
19 PC1
18 PC0
17 PB7
16 PB6
15 PB5
2.0 PIN DESCRIPTIONS
Name
OSCI
OSCO
T0CKI/SCL
MCLR/Vpp
PA0~PA3
PB0~PB7
PC0~PC7
Vdd
Vss
I/O
Descriptions
RC type: Input pin of RC oscillator
I
XTAL type: Input terminal of crystal oscillator
RC type: OSCO outputs with 1/4 frequency of OSCI to denotes the cycle
O rate for instruction.
XTAL type: Output terminal of crystal oscillator
I Input pin of real time counter/clock. Must be tied to Vss or Vdd if not in use.
Input pin for device reset or high voltage programming input for EPROM. If
this pin is low, the device is reset.
I In programmimg mode, this pin is connected to 12V. In normal operating
mode, this pin must not exceed Vdd to avoid entering unintended program-
ming mode.
I/O PA0~PA3 as bi-directional I/O port
I/O PB0~PB7 as bi-directional I/O port
I/O PC0~PC7 as bi-directional I/O port
- Power supply
- Ground
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C
Email: server@ceramate.com.tw
Tel:886-3-3529445
Fax:886 -3 -3521052
Page 2 of 23
Http: www.ceramate.com.tw
Rev 1.1 Dec 26,2001
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