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PDF BL22P64 Data sheet ( Hoja de datos )
| Número de pieza | BL22P64 | |
| Descripción | 8-bit OTP MCU | |
| Fabricantes | BELLING | |
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BL22P64 SPECIFICATION
8 - b i t O T P MCU
V1.3
Shanghai Belling Co., Ltd.
1 page  
上海贝岭股份有限公司
Shanghai Belling Co., Ltd.
BL22P64 SPECIFICATION
ADDATAH
$28 R XXXX XXXX
ADDATAL
$29 R
---- --XX
NOTE:
● - : Not used; X: Undefined; R: Determined by OPBIT[2]
5.3.1 T0CNT（TIMER 0 Counter Register）
T0CNT is a 8-bit counter register of Timer 0. T0CNT is read only.
5.3.2 T0DATA（TIMER 0 Data Register）
T0DATA is a 8-bit Data Register to set match data of Timer 0. When the counter value is identical to
the value written to T0DATA, generates a Timer 0 match interrupt.
5.3.3 T0CON（TIMER 0 Control Register）
Timer 0 Control Register, is used to select the Timer 0 operating mode.
.7-.6 T0PS[1:0] Timer 0 input clock selection
00: Fsys/4096
01: Fsys/256
10: Fsys/8
11: Fsys
（NOTE：Fsys is system frequency which is half of oscillator’s）
.5-.4 Not used
.3 T0CLR Timer 0 counter clear bit. Value is “0” when read.
0: No effect
1: Clear the Timer 0 counter (when write) 0
.2 Not used
.1 T0E Timer 0 interrupt enable bit
0: Disable T0 interrupt
1: Enable T0 interrupt
.0 T0F Timer 0 interrupt pending bit
0: No T0 interrupt pending (when read)
0: Clear T0 pending bit (when write)
1: Interrupt is pending (when read)
1: No effect (when write)
5.3.4 MCR（Miscellaneous Control Register）
MCR is used to control LVR. The reset value is determined by OPBIT[2]。
.7-.1 Not used
.0 LVRE LVR enable bit
0: LVR disable
1: LVR enable
5.3.5 BTCON（Basic Timer Control Register）
BTCON, is used to select the input clock frequency, to clear the basic timer counter and frequency
dividers, and to control the watchdog timer.
.7-.4 WDTE[3:0] Watchdog timer enable bits
TEL：86-21-64850700 WEB: www.belling.com.cn
Page 5 of 15
5 Page 
上海贝岭股份有限公司
Shanghai Belling Co., Ltd.
BL22P64 SPECIFICATION
0: P12 as normal I/O pin
1: P12 as external reset input pin
.2 LVREO
0: LVR disable
1: LVR enable
.0-.1 OSC/RC
00: Crystal/ceramic oscillator (400K-4MHz) as system clock
01: External RC oscillator as system clock
10: Internal RC oscillator(0.5MHz) as system clock
11: Internal RC oscillator(3.2MHz) as system clock
6．ELECTRICAL DATA
6.1 Absolute Maximum Ratings
(TA=25℃)
Parameter
Symbol
Supply voltage
VDD
Input voltage
VI
Output voltage
VO
Output current high
IOH
Output current low
IOL
Operating temperature
Storage temperature
TA
TSTG
Condition
-
All ports
All ouput ports
One I/O pin active
All I/O pin active
One I/O pin active
All I/O pin active
-
-
Rating
-0.3 to +6.5
-0.3 to VDD+0.5
-0.3 to VDD+0.5
-25
-80
+30
+150
-40 to +85
-65 to +150
Unit
V
V
V
mA
mA
mA
mA
℃
℃
6.2 DC Electrical Characteristics
(TA=25℃ VDD=2.7-5.5V)
Parameter Sym.
Condition
Input high
voltage
VIH P0,P1,P2 VDD=2.7-5.5V
Input low
voltage
VIL P0,P1,P2 VDD=2.7-5.5V
Output high
voltage
VOH
IOH=-10mA
P0,P1,P2
VDD=4.5-5.5V
Output low
voltage
VOL
IOL=25mA
P0,P1,P2
VDD=4.5-5.5V
Input high
leakage IIH All input
current
VIN=VDD
Input low
leakage IIL All input
current
VIN=0
Min
0.8VDD
Typ
-
Max
VDD
0 - 0.2VDD
VDD-1.5 VDD-0.4 -
- 0.5 2.0
- -1
- -1
Unit
V
V
V
V
uA
uA
TEL：86-21-64850700 WEB: www.belling.com.cn
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11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet BL22P64.PDF ] | |
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