M68CBL11B datasheet(21/242 Pages) FREESCALE

tên linh kiện	M68CBL11B

Giải thích chi tiết về linh kiện	HC11 Microcontrollers

PDF	242 Pages

Scroll/Zoom	100%

nhà sản xuất	FREESCALE [Freescale Semiconductor, Inc]

Trang chủ	http://www.freescale.com

Logo

21 / 242 page

Pin Descriptions

M68HC11E Family Data Sheet, Rev. 5.1

Freescale Semiconductor

1.4.1 VDD and VSS

Power is supplied to the MCU through VDD and VSS. VDD is the power supply, VSS is ground. The MCU

operates from a single 5-volt (nominal) power supply. Low-voltage devices in the E series operate at

3.0–5.5 volts.

Very fast signal transitions occur on the MCU pins. The short rise and fall times place high, short duration

current demands on the power supply. To prevent noise problems, provide good power supply bypassing

at the MCU. Also, use bypass capacitors that have good

high-frequency characteristics and situate them as close to the MCU as possible. Bypass requirements

vary, depending on how heavily the MCU pins are loaded.

Figure 1-7. External Reset Circuit

Figure 1-8. External Reset Circuit with Delay

4.7 k

Ω

TO RESET

VDD

MC34(0/1)64

RESET

GND

OF M68HC11

VDD

TO RESET

VDD

MC34064

RESET

GND

OF M68HC11

RESET

GND

MANUAL

RESET SWITCH

4.7 k

Ω

1.0

µF

MC34164

4.7 k

Ω

VDD

OPTIONAL POWER-ON DELAY AND MANUAL RESET SWITCH

4.7 k

Ω

M68CBL11B bảng dữ liệu(PDF) 21 Page - Freescale Semiconductor, Inc

M68CBL11B bảng dữ liệu(HTML) 21 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL