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参数资料
| 型号： | DS8023-RJX+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/17页 |
| 文件大小： | 0K |
| 描述： | IC INTERFACE SMART CARD 28-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 智能卡 |
| 接口： | 模拟 |
| 电源电压： | 2.7 V ~ 6 V |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
| 配用： | DS8023-KIT-ND - EVALUATION KIT FOR DS8023 |
DS8023
Smart Card Interface
6
Maxim Integrated
Pin Description
PIN
NAME
FUNCTION
1, 2
CLKDIV1,
CLKDIV2
Clock Divider. Determines the divided-down input clock frequency (presented at XTAL1 or from a
crystal at XTAL1 and XTAL2) on the CLK output pin. Dividers of 1, 2, 4, and 8 are available.
3
5V/3V
5V/3V Selection Pin. Allows selection of 5V or 3V for communication with an IC card. Logic-high
selects 5V operation; logic-low selects 3V operation. See Table 3 for a complete description of
choosing card voltages.
4
PGND
Analog Ground
5, 7
CP2, CP1
Step-Up Converter Contact. Charge-pump capacitor. Connect a 100nF capacitor (ESR < 100m
)
between CP1 and CP2.
6
VDDA
Charge-Pump Supply. Must be equal to or higher than VDD. Connect a supply of at least 3.0V.
8
VUP
Charge-Pump Output. Connect a 100nF capacitor (ESR < 100m
) between VUP and GND.
9
PRES
Card Presence Indicator. Active-low card presence inputs. When the presence indicator becomes
active, a debounce timeout begins. After 8ms (typ) the OFF signal becomes active.
10
PRES
Card Presence Indicator. Active-high card presence inputs. When the presence indicator becomes
active, a debounce timeout begins. After 8ms (typ) the OFF signal becomes active.
11
I/O
Smart Card Data-Line Output. Card data communication line, contact C7.
12, 13
AUX2,
AUX1
Smart Card Auxiliary Line (C4, C8) Output. Data line connected to card reader contacts C4 (AUX1)
and C8 (AUX2).
14
CGND
Smart Card Ground
15
CLK
Smart Card Clock. Card clock, contact C3.
16
RST
Smart Card Reset. Card reset output from contact C2.
17
VCC
Smart Card Supply Voltage. Decouple to CGND (card ground) with 2 x 100nF or 100 + 220nF
capacitors (ESR < 100m ).
18
1_8V
1.8V Operation Selection. Active-high selection for 1.8V smart card communication. An active-high
signal on this pin overrides any setting on the 5V/3V pin.
19
CMDVCC
Activation Sequence Initiate. Active-low input from host.
20
RSTIN
Card Reset Input. Reset input from the host.
21
VDD
Supply Voltage
22
GND
Digital Ground
23
OFF
Status Output. Active-low interrupt output to the host. Use a 20k
integrated pullup resistor to VDD.
24, 25
XTAL1,
XTAL2
Crystal/Clock Input. Connect an input from an external clock to XTAL1 or connect a crystal across
XTAL1 and XTAL2. For the low idle-mode current variant, an external clock must be driven on
XTAL1.
26
I/OIN
I/O Input. Host-to-interface chip data I/O line.
27, 28
AUX1IN,
AUX2IN
C4/C8 Input. Host-to-interface I/O line for auxiliary connections to C4 and C8.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS8023-RRX+ | 功能描述:接口 - 专用 Smart Card Interface RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| DS8023-RRX+T&R | 制造商:Maxim Integrated Products 功能描述:DS8023 SMART CARD INT 28 SOIC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC INTERFACE SMART CARD 28-SOIC |
| DS8023-RRX+T&R | 功能描述:接口 - 专用 Smart Card Interface RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| DS8024 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:智能卡接口 |
| DS8024_V3 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Smart Card Interface |
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