- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1899 > ADP5588ACPZ-R7 (Analog Devices Inc)IC KEYPAD SCANNER GPIO PORT EXP PDF資料下載
參數(shù)資料
| 型號： | ADP5588ACPZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 26/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC KEYPAD SCANNER GPIO PORT EXP |
| 標準包裝： | 1 |
| 應(yīng)用： | 鍵盤和警報系統(tǒng) |
| 接口： | I²C |
| 電源電壓： | 1.8 V ~ 3 V |
| 封裝/外殼： | 24-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 24-LFCSP-VQ（4x4） |
| 包裝： | 標準包裝 |
| 安裝類型： | 表面貼裝 |
| 產(chǎn)品目錄頁面： | 799 (CN2011-ZH PDF) |
| 其它名稱： | ADP5588ACPZ-R7DKR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當(dāng)前第26頁第27頁第28頁
Data Sheet
ADP5588
Rev. C | Page 7 of 28
THEORY OF OPERATION
CONTROL
REGISTERS
CONTROL
INTERFACE
REF
VOLTAGE
C9
C8
R7
R6
R5
R4
R3
R2
R1
R0
C0
C1
C2
C3
C4
C5
C6
C7
C9
C8
A0
A1
A2
A3
A4
A5
A6
A7
B0
B1
B2
B3
B4
B5
B6
B7
C0
C1
C2
C3
C4
C5
C6
C7
D0
D1
D2
D3
D4
D5
D6
D7
E0
E1
E2
E3
E4
E5
E6
E7
F0
F1
F2
F3
F4
F5
F6
F7
G0
G1
G2
G3
G4
G5
G6
G7
H0
H1
H2
H3
H4
H5
H6
H7
I0
I1
I2
I3
I4
I5
I6
I7
J0
J1
J2
J3
J4
J5
J6
J7
SCL
SDA
RST
INT
VCC
GND
VCC
SCL
SDA
19
21
23
22
18
17
20
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
REF
VOLTAGE
0.1F
VCC
07673-
009
ADP5588
RST
INT
Figure 4. Typical Operating Circuit
The ADP5588 is a GPIO expander that can be configured either
as an 18-I/O port expander or as a 10 column × 8 row keypad
matrix (80 keys maximum). It is ideal for cellular phone designs
and other portable devices that require a large extended keypad
and/or expanded I/Os (see the Applications Information section
for various configurations). When smaller size keypads are
required, unused GPIOs in the keypad matrix can be used as
I/Os (GPOs and GPIs). Two of the columns (C8 and C9) can
also be configured as comparator inputs for single or dual light
sensors. All GPIOs (rows and columns) default as GPIs at power-
up with pull-ups and debounce enabled.
KEYPAD OPERATION
Any number of rows and columns, up to 10 columns × 8 rows,
can be configured to be part of the keypad matrix. The rows
and columns that make up the keypad matrix must be con-
figured by setting the corresponding bits in Register 0x1D
through Register 0x1F. Keys on the keypad matrix appear on
the key event table with a decimal value of 1 (0x01 hexidecimal
or 0000001 binary) and run through 80 decimals (0x50 hexi-
decimal or 1010000 binary). See Table 10 for key event number
assignments. The keypad, in idle mode, is configured with
columns being driven low and rows as inputs high with pull-ups.
Table 10. Key Event Number Assignment Table
Row
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
R0
1
2
4
5
6
7
8
9
10
R1
11
12
13
14
15
16
17
18
19
20
R2
21
22
23
24
25
26
27
28
29
30
R3
31
32
33
34
35
36
37
38
39
40
R4
41
42
43
44
45
46
47
48
49
50
R5
51
52
53
54
55
56
57
58
59
60
R6
61
62
63
64
65
66
67
68
69
70
R7
71
72
73
74
75
76
77
78
79
80
When one key press or multiple key presses (short between
coumn and row) occur, the internal state machine checks the
row pins to determine which one is driven low and then triggers
an interrupt. The state machine then starts a key scan cycle to
determine which keys are pressed. After a key has been pressed
for 25 ms, the state machine sets the appropriate key(s) in the
key event status register with the key-pressed bits set (the MSB
in the key event register) in the order detected. If the KE_IEN
field in Register 0x01 is set, the state machine then sets the
KE_INT field in Register 0x01 and generates an interrupt to the
host processor.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADP5589ACPZ-00-R7 | IC KEY DECODER 19I/O EXP 24LFCSP |
| ADSP-2104BPZ-80 | IC DSP CONTROLLER 16BIT 68PLCC |
| ADSP-21060LCW-160 | IC DSP CONTROLLER 32BIT 240CQFP |
| ADSP-21061KS-200 | IC DSP CONTROLLER 32BIT 240MQFP |
| ADSP-21065LCCA-240 | IC DSP CTLR 32BIT 196CSPBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP5588ACPZ-R7B2 | 功能描述:Keypads and Alarm Systems Interface 24-LFCSP-WQ (4x4) 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):上次購買時間 應(yīng)用:鍵盤和警報系統(tǒng) 接口:I2C 電壓 - 電源:1.8 V ~ 3 V 封裝/外殼:24-WFQFN 裸露焊盤，CSP 供應(yīng)商器件封裝:24-LFCSP-WQ（4x4） 安裝類型:表面貼裝 標準包裝:1 |
| ADP5588-EVALZ | 功能描述:BOARD EVAL ADP5588 KEYPAD/GPIO RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| ADP5588XCPZ-R7 | 功能描述:Keypads and Alarm Systems Interface 制造商:analog devices inc. 系列:- 包裝:- 零件狀態(tài):上次購買時間 應(yīng)用:鍵盤和警報系統(tǒng) 接口:I2C 電壓 - 電源:1.8 V ~ 3 V 封裝/外殼:- 供應(yīng)商器件封裝:- 安裝類型:- 標準包裝:1 |
| ADP5588XCPZ-X2-R7 | 功能描述:Keypads and Alarm Systems Interface 制造商:analog devices inc. 系列:- 包裝:- 零件狀態(tài):上次購買時間 應(yīng)用:鍵盤和警報系統(tǒng) 接口:I2C 電壓 - 電源:1.8 V ~ 3 V 封裝/外殼:- 供應(yīng)商器件封裝:- 安裝類型:- 標準包裝:1 |
| ADP5589ACBZ-00-R7 | 功能描述:IC PORT EXPANDER 19I/O 25WLSCP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:* 特色產(chǎn)品:NXP - I2C Interface 標準包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。