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| 型號(hào)： | HC805P18GRS |
| 英文描述： | 68HC805P18 Technical Data |
| 中文描述： | 68HC805P18技術(shù)數(shù)據(jù) |
| 文件頁(yè)數(shù)： | 51/111頁(yè) |
| 文件大?。?/td> | 748K |
| 代理商： | HC805P18GRS |
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GENERAL RELEASE SPECIFICATION
MC68HC805P18
Rev. 1.0
EEPROM
MOTOROLA
8-1
8
2
3
4
5
6
7
8
9
10
11
12
13
14
A
16
17
18
19
20
SECTION 8
EEPROM
8.1 Introduction
This section describes the EEPROM which is located at address $0140 and
consists of 128 bytes. Programming the EEPROM can be done by the user on a
single byte basis by manipulating the programming register located at address
$001C.
Also, the mask option register (MOR), which consists of two additional EEPROM
bytes, is discussed.
8.2 EEPROM Programming Register (EEPROG)
The contents and use of the programming register are discussed here.
CPEN — Charge Pump Enable
When set, CPEN enables the charge pump which produces the internal
EEPROM programming voltage. This bit should be set concurrently with the
LATCH bit. The programming voltage will not be available until EEPGM is set.
The charge pump should be disabled when not in use. CPEN is readable and
writable and is cleared by reset.
ER1 and ER0 — Erase Select Bits
ER1 and ER0 form a 2-bit field which is used to select one of three erase modes:
byte, block, or bulk. Table 8-1 shows the modes selected for each bit
configuration. These bits are readable and writable and are cleared by reset.
Bit 7
6
5
4
3
2
1
Bit 0
EEPROG
$001C
Read:
0
CPEN
0
ER1
ER0
LATCH
EERC
EEPGM
Write:
Reset:
0
0
0
0
0
0
0
0
= Unimplemented
Figure 8-1. EEPROM Programming Register
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HC80-8.0MHZ | 功能描述:晶體 CRYSTAL 8MHz RoHS:否 制造商:AVX 頻率:26 MHz 容差: 頻率穩(wěn)定性:50 PPM 負(fù)載電容:8 pF 端接類型:SMD/SMT 封裝 / 箱體:1210 (3225 metric) 工作溫度范圍:- 40 C to + 150 C 尺寸:2.5 mm W x 3.2 mm L x 0.85 mm H 封裝:Reel |
| HC80U | 制造商:FOX 制造商全稱:FOX 功能描述:RESISTANCE WELD THRU-HOLE CRYSTAL |
| HC80U-3.6864MHz | 功能描述:晶體 3.6864MHz 20pF RoHS:否 制造商:AVX 頻率:26 MHz 容差: 頻率穩(wěn)定性:50 PPM 負(fù)載電容:8 pF 端接類型:SMD/SMT 封裝 / 箱體:1210 (3225 metric) 工作溫度范圍:- 40 C to + 150 C 尺寸:2.5 mm W x 3.2 mm L x 0.85 mm H 封裝:Reel |
| HC80UW | 制造商:FOX 制造商全稱:FOX 功能描述:RESISTANCE WELD MINIATURE CRYSTAL (GULLWING) |
| HC8-100-R | 功能描述:固定電感器 10uH 9.2A 43.6mOhms RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
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