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參數資料
| 型號： | 71M6521DE-IMR/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, QCC68 |
| 封裝： | LEAD FREE, LQFN-68 |
| 文件頁數： | 40/103頁 |
| 文件大小： | 1691K |
| 代理商： | 71M6521DE-IMR/F |
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71M6521DE/71M6521FE
Energy Meter IC
DATA SHEET
OCTOBER 2010
v1.1
2005-2010 Teridian Semiconductor Corporation
Page: 41 of 103
A Maxim Integrated Products Brand
19-5370; 10/10
DIO
PB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin no. (64 LQFP)
62
57
3
-
37
38
39
40
41
42
43
44
--
20
21
Pin no. (68 QFN)
65
60
3
5
39
40
41
42
43
44
45
46
--
21
22
Data Register
0
1
2
3
4
5
6
7
0
1
2
3
--
6
7
DIO0=P0 (SFR 0x80)
DIO1=P1 (SFR 0x90)
Direction Register
0
1
2
3
4
5
6
7
0
1
2
3
--
6
7
DIO_DIR0 (SFR 0xA2)
DIO_DIR1 (SFR 0x91)
Internal Resources
Configurable
Y
--
DIO
16
17
18
19
20
21
22
23
Pin no. (64 LQFP)
22
12
--
Pin no. (68 QFN)
23
13
--
24
47
68
Data Register
0
1
--
3
4
5
--
DIO2=P2 (SFR 0xA0)
Direction Register
0
1
--
3
4
5
--
DIO_DIR2 (SFR 0xA1)
Internal Resources
Configurable
N
--
N
--
Table 54: Data/Direction Registers and Internal Resources for DIO Pin Groups
DIO_DIR [n]
0
1
DIO Pin n Function
Input
Output
Table 55: DIO_DIR Control Bit
Additionally, if DIO6 and DIO7 are declared outputs, they can be configured as dedicated pulse outputs (WPULSE = DIO6,
VARPULSE = DIO7) using DIO_PW and DIO_PV registers. In this case, DIO6 and DIO7 are under CE control. DIO4 and DIO5
can be configured to implement the EEPROM Interface.
The PB pin is a dedicated digital input. If the optical UART is not used, OPT_TX and OPT_RX can be configured as dedicated
DIO pins (DIO1, DIO2, see Optical Interface section).
A 3-bit configuration word, I/O RAM register, DIO_Rx (0x2009[2:0] through 0x200E[6:4]) can be used for certain pins, when
configured as DIO, to individually assign an internal resource such as an interrupt or a timer control (see Table 54 for DIO pins
available for this option). This way, DIO pins can be tracked even if they are configured as outputs.
Tracking DIO pins configured as outputs is useful for pulse counting without external hardware.
When driving LEDs, relay coils etc., the DIO pins should sink the current into GNDD (as shown in Figure 8,
right), not source it from V3P3D (as shown in Figure 8, left). This is due to the resistance of the internal
switch that connects V3P3D to either V3P3SYS or VBAT.
When configured as inputs, the dual-function (DIO/SEG) pins should not be pulled above V3P3SYS in
MISSION and above VBAT in LCD and BROWNOUT modes. Doing so will distort the LCD waveforms of the
other pins. This limitation applies to any pin that can be configured as a LCD driver.
The control resources selectable for the DIO pins are listed in Table 56. If more than one input is connected to the same
resource, the resources are combined using a logical OR.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 71M6521DH | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Energy Meter ICs |
| 71M6521DH-IGT/F | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Energy Meter ICs |
| 71M6521DH-IGTR/F | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Energy Meter ICs |
| 71M6521FE | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Energy Meter IC |
| 71M6521FE-DB | 功能描述:開發板和工具包 - 8051 71M6521FE Demo Brd RoHS:否 制造商:Silicon Labs 產品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
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