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鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉(h脿o)锛� | PIC16F627T-04E/SS |
| 寤犲晢锛� | Microchip Technology |
| 鏂囦欢闋佹暩(sh霉)锛� | 5/170闋� |
| 鏂囦欢澶у皬锛� | 0K |
| 鎻忚堪锛� | IC MCU FLASH 1KX14 20-SSOP |
| 鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� | Asynchronous Stimulus |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 1,600 |
| 绯诲垪锛� | PIC® 16F |
| 鏍稿績铏曠悊鍣細 | PIC |
| 鑺珨灏哄锛� | 8-浣� |
| 閫熷害锛� | 4MHz |
| 閫ｉ€氭€э細 | UART/USART |
| 澶栧湇瑷�(sh猫)鍌欙細 | 娆犲妾㈡脯(c猫)/寰�(f霉)浣�锛孭OR锛孭WM锛學DT |
| 杓稿叆/杓稿嚭鏁�(sh霉)锛� | 16 |
| 绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 | 1.75KB锛�1K x 14锛� |
| 绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 | 闁冨瓨 |
| EEPROM 澶�?銆�?/td> | 128 x 8 |
| RAM 瀹归噺锛� | 224 x 8 |
| 闆诲 - 闆绘簮 (Vcc/Vdd)锛� | 3 V ~ 5.5 V |
| 鎸暕鍣ㄥ瀷锛� | 鍏�(n猫i)閮� |
| 宸ヤ綔婧害锛� | -40°C ~ 125°C |
| 灏佽/澶栨锛� | 20-SSOP锛�0.209"锛�5.30mm 瀵級 |
| 鍖呰锛� | 甯跺嵎 (TR) |
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PIC16F62X
DS40300C-page 100
Preliminary
2003 Microchip Technology Inc.
FIGURE 14-11:
EXTERNAL POWER-ON
RESET CIRCUIT (FOR
SLOW VDD POWER-UP)
FIGURE 14-12:
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 1
FIGURE 14-13:
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 2
Note
1: External Power-on Reset circuit is required
only if V
DD power-up slope is too slow. The
diode D helps discharge the capacitor
quickly when V
DD powers down.
2: R < 40 k
is recommended to make sure
that voltage drop across R does not violate
the device鈥檚 electrical specification.
3: R1 = 100
to 1 k will limit any current
flowing into MCLR from external capacitor
C in the event of MCLR/V
PP pin breakdown
due to Electrostatic Discharge (ESD) or
Electrical Overstress (EOS).
C
R1
R
D
V
DD
MCLR
PIC16F62X
V
DD
Note
1: This circuit will activate RESET when V
DD
goes below (Vz + 0.7V) where Vz = Zener
voltage.
2: Internal Brown-out Detect Reset circuitry
should be disabled when using this circuit.
V
DD
33k
10k
40k
V
DD
MCLR
PIC16F62X
Vdd x
R1
R1 + R2
= 0.7 V
V
DD
R2
40k
V
DD
MCLR
PIC16F62X
R1
Q1
Note
1:
This Brown-out Circuit is less expensive, albeit
less accurate. Transistor Q1 turns off when V
DD is
below a certain level such that:
2:
Internal Brown-out Detect Reset should be
disabled when using this circuit.
3:
Resistors should be adjusted for the
characteristics of the transistor.
V
DD x
R1
R1 + R2
= 0.7V
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