- 您现在的位置：买卖IC网 > PDF目录10922 > 73S1210F-44IMR/F (Maxim Integrated Products)IC SMART CARD READER 44-QFN PDF资料下载
参数资料
| 型号： | 73S1210F-44IMR/F |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 46/126页 |
| 文件大小： | 0K |
| 描述： | IC SMART CARD READER 44-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | 73S12xx |
| 核心处理器： | 80515 |
| 芯体尺寸： | 8-位 |
| 速度： | 24MHz |
| 连通性： | I²C，智能卡，UART/USART |
| 外围设备： | LED，POR，WDT |
| 输入/输出数： | 8 |
| 程序存储器容量： | 32KB（32K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 2K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 6.5 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页当前第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页
73S1210F Data Sheet
DS_1210F_001
26
Rev. 1.4
VBAT is expected to be supplied from a battery of three to four series connected cells with a voltage value
of 4.0 to 6.5 volts.
VBAT and VBUS are internally switched to VPC by two separate FET switches configured as a SPDT switch
(break-before-make). They will not be enabled at the same time. VBUS is automatically selected in lieu of
VBAT when VBUS is present (i.e. VBUS always has the priority).
If VPC is provided and either VBAT or VBUS is also used, the source of VPC must be diode isolated from the
VPC pin to prevent current flow from VBAT or VBUS into the VPC source.
The power that is supplied to the VPC pin (externally or internally, i.e. through VBAT or VBUS – see above) is
up-converted to the intermediate voltage VP utilizing an inductive, step-up converter. A series power
inductor (nominal value = 10
H) must be connected from V
PC to the pin LIN, and a 10F low ESR filter
capacitor must be connected to VPC.
VP requires a 4.7F filter capacitor and will have a nominal value of 5.5 volts during normal operation. VP
is used internally by the smart card electrical interface circuit and is regulated to the desired smart card
supply VCC voltage (can be programmed for values of 5V, 3V, or 1.8V).
VP is also used internally to generate a 3.3V nominal, regulated power supply VDD. VDD is output on pin
68 and must be directly tied to all other VDD pins on the 73S1210F (pins 28 and 40). VDD powers all the
digital logic, input/output buffering, and analog functions. It can also be used for external circuitry: up to
20mA current can be supplied to external devices simultaneously to the 73S1210F’s digital core
maximum consumption.
1.7.3
Power ON/OFF
The 73S1210F features an ON_OFF input pin for a momentary contact, main-system ON/OFF switch. The
purpose of this switch is to place the circuit in a very low-power mode – the “OFF” mode – where all circuits
are no longer powered, therefore allowing the lowest possible current consumption.
When in “OFF” mode, an action on the ON/OFF switch will turn-on the power supply of the digital core
(VDD) and apply a power-on-reset condition. Alternatively, entering the “OFF” mode from the “ON” mode
requires firmware action.
When in “ON” mode, an action on the ON/OFF switch will send a request to the controller that will have to
be acknowledged (firmware action required) in order to enter the “OFF” state.
When placed into the “OFF” state, the 73S1210F will consume minimum current from VPC and VBAT; VP
and VDD will be unavailable (VDD out = 0V and VP = 0V).
When in “ON” mode, the 73S1210F will operate normally, with all the features described in this document
available. VP and VDD will be available (VDD out = 3.3V and VP = 5.5V nominal).
Whenever VBUS power is supplied, the circuit will be automatically in the “ON” state. The functions of the
ON/OFF switch and circuitry are overridden and the 73S1210F is in the “ON” state with VP and VDD available.
Without VBUS applied, the circuit is by default in the “OFF” state, and will respond only to the ON_OFF pin.
The ON_OFF pin should be connected to an SPST switch to ground. If the circuit is OFF and the switch
is closed for a debounce period of 50-100ms, the circuit will go into the “ON” state wherein all functions
are operating in normal fashion. If the circuit is in the “ON” state and the ON/OFF pin is connected to
ground for a period greater than the debounce period, OFF_REQ will be asserted high and held
regardless of the state of ON/OFF. The OFF_REQ signal should be connected to one of the interrupt
pins to signal the CPU core that a request to shutdown has been initiated. The firmware will
acknowledge this request by setting the SCPWRDN bit in the Smart Card VCC Control/Status Register
(VccCtl) high after it has completed all shutdown activities. When SCPWRDN is set high, the circuit will
deactivate the smart card interface if required and turn off all analog functions and the VDD supply for the
logic and companion circuits. The default state upon application of power is the “OFF” state unless
power is supplied to the VBUS supply. Note that at any time, the firmware may assert SCPWRDN and the
相关PDF资料 |
PDF描述 |
|---|---|
| ISD1740SY | IC VOICE REC/PLAY 40-SEC 28-SOIC |
| MAXQ7670ATL/V+T | IC MCU W/10BIT ADC 40TQFN-EP |
| ISD17210EYIR | IC VOICE REC/PLAY 210SEC 28-TSOP |
| ISD1790EY | IC VOICE REC/PLAY 90-SEC 28-TSOP |
| DS80C323-ECD+T&R | IC MCU 18MHZ HS/LP 44-TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 73S1210F-44M/F/PC | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| 73S1210F-44M/F/PD | 制造商:Maxim Integrated Products 功能描述:SCR+PIN PAD/SRL INTRFC/PWR MGT-PROG - Rail/Tube |
| 73S1210F-44MR/F/PC | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| 73S1210F-68IM/F | 功能描述:8位微控制器 -MCU SoC Smart Card Readr w/PINpad & PWR Mgt RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| 73S1210F-68IM/F/P | 功能描述:IC SMART CARD READER PROG 68-QFN RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:73S12xx 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:260 系列:73S12xx 核心处理器:80515 芯体尺寸:8-位 速度:24MHz 连通性:I²C，智能卡，UART/USART，USB 外围设备:LED，POR，WDT 输入/输出数:9 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-VFQFN 裸露焊盘 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。