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參數(shù)資料
| 型號(hào)： | PCA9621D,118 |
| 廠商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 2/18頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC BUS OUTPUT PORT 2WIRE 16SOIC |
| 產(chǎn)品培訓(xùn)模塊： | I²C Bus Fundamentals |
| 特色產(chǎn)品： | NXP - I2C Interface |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 接口： | I²C 總線，SM 總線 |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 無(wú) |
| 頻率 - 時(shí)鐘： | 1MHz |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SO |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | 568-6671-6 |
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PCA9621
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 9 March 2011
10 of 18
NXP Semiconductors
PCA9621
65 mA 8-bit 2-wire bus output port
Figure 12 shows a simple 7-segment display drive arrangement. All of the 7 segments
plus decimal point can be driven from a single PCA9621. By using the address pins, up to
8 digits can be addressed from a single bus. When running at 1 MHz, all 8 digits can be
updated in less than 0.2 ms.
Further, by using the arrangement described above and shown in Figure 11, the number
of digits driven may be increased significantly.
Figure 13 shows the PCA9621 used in conjunction with other NXP Semiconductors
2-wire bus buffers to form a multiplexer arrangement. Using the PCA9621 to control
multiples of either PCA9521 or PCA9522 produces an isolating bus switch/multiplexer
that has fully compliant I2C-bus I/O levels, low offset voltages, and large noise margins.
Using PCA9522 in this arrangement additionally provides ‘hot-swap’ capability.
Fig 12. PCA9621 as 7-segment display driver
Address lines allow this structure to be repeated 8 more times.
(1) Or PCA9525 (400 pF), or PCA9605 (4000 pF), or PCA9646 (4
× 4000 pF).
Fig 13. PCA9621 as part of a fully isolating I2C-bus multiplexer
002aaf398
SCL
SDA
PCA9621
VDD
P0
P1
U1
RESET
P2
P3
A[2:0]
3
P4
P5
P6
P7
R1
R2
SCL
SDA
5 V
repeat up to 8 times using
address pins on PCA9621
002aaf399
SCL
SDA
PCA9621
VDD
P0
P1
U1
RESET
P2
P3
A[2:0]
3
P4
P5
P6
P7
SA1
SB1
VCC
EN
R1
R2
SCL
SDA
3.3 V
PCA9521(1)
U2
SA2
SB2
400 pF(1)
SCLC
SDAC
VCC
EN
PCA9522(1)
U3
SCLB
SDAB
400 pF(1)
3.3 V
RDY
multiple
isolated
buses
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相關(guān)代理商/技術(shù)參數(shù) |
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| PCA9621PW,118 | 功能描述:數(shù)字總線開關(guān) IC 65 mA 8-Bit 2-Wire Bus Output Port RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| PCA9622BS,118 | 功能描述:LED照明驅(qū)動(dòng)器 16-BIT FM+ I2C-BUS 100MA 40V LED DRIVER RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9622DR | 制造商:NXP Semiconductors 功能描述:IC LED DRIVER RGBA 32-TSSOP 制造商:NXP Semiconductors 功能描述:IC, LED DRIVER, RGBA, 32-TSSOP 制造商:NXP Semiconductors 功能描述:IC, LED DRIVER, RGBA, 32-TSSOP; No. of Outputs:16; Output Current:100mA; Output Voltage:40V; Driver Case Style:TSSOP; Input Voltage Min:2.3V; Input Voltage Max:5.5V; Dimming Control Type:PWM; Switching Frequency:1MHz; Operating ;RoHS Compliant: Yes |
| PCA9622DR,118 | 功能描述:LED照明驅(qū)動(dòng)器 16-BIT FM+ I2C-BUS 100mA 40V LED driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9622DR,118-CUT TAPE | 制造商:NXP 功能描述:PCA9622 Series 100 mA 5.5 V 1 MHz SMT 16-bit I2C-Bus LED Driver - TSSOP-32 |
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