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AT83C24B-PRRUL PDF预览

AT83C24B-PRRUL

更新时间: 2024-01-25 03:06:42
品牌 Logo 应用领域
爱特美尔 - ATMEL 微控制器和处理器外围集成电路uCs集成电路uPs集成电路异步传输模式ATM
页数 文件大小 规格书
42页 551K
描述
Smart Card Reader Interface with Power Management

AT83C24B-PRRUL 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:SOP, SOP28,.56Reach Compliance Code:compliant
风险等级:5.08JESD-30 代码:R-PDSO-G28
JESD-609代码:e3湿度敏感等级:3
端子数量:28最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP28,.56
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:3/5 V认证状态:Not Qualified
子类别:Other Microprocessor ICs表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn) - annealed
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUALuPs/uCs/外围集成电路类型:MICROPROCESSOR CIRCUIT
Base Number Matches:1

AT83C24B-PRRUL 数据手册

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AT83C24  
Pin Description  
Pinouts (Top View)  
28-pin SOIC Pinout  
QFN28 pinout  
CLK  
C8  
28  
1
2
DVCC  
27  
26  
25  
PRES/INT  
C4  
RESET  
3
4
24  
25  
26  
23 22  
27  
28  
1
EVCC  
I/O  
21  
CMDVCC  
CMDVCC  
VSS  
20  
EVCC  
2
3
4
24  
23  
22  
21  
20  
19  
18  
17  
VSS  
VCC  
5
6
A2  
A1  
/CK  
/RST  
/3V  
/CK  
A2  
19  
18  
VCC  
CVSS  
LI  
QFN 28  
/RST  
A1  
7
8
CVSS  
LI  
A0  
TOP VIEW  
A0/3V  
SCL  
17  
16  
5
6
7
SCL  
SDA  
NC  
9
CVCC  
CVCC  
SDA  
10  
CVCCin  
15  
CVCCin  
8
9
11  
12  
13  
NC  
CIO  
10 11 12 13  
14  
CRST  
CCLK  
NC  
CC8  
16  
15  
CPRES  
14  
CC4  
Note:  
1. NC = Not Connected  
2. SOIC and QFN packages are available for AT83C24 and for AT83C24NDS  
Signals  
Table 1. Ports Description  
Pad Name  
Pad Internal  
ESD  
Pad  
Power Supply  
Limits  
Type  
Description  
Microcontroller Interface Function:  
TWI bus slave address selection input.  
A2/CK and A1/RST pins are respectively connected to CCLK and CRST signals in  
“transparent mode” (see page 17 ).  
A2/CK-  
A1/RST-  
A0/3V  
EVCC  
3 kV  
I
A0/3V is used for hardware activation to select CVCC voltage (3V or 5V).  
The slave address of the device is based on the value present on A2, A1, A0 on the  
rising edge of RESET pin (see Table 2). In fact, the address is taken internally at the 11th  
CLK rising edge.  
Microcontroller Interface Function:  
Depending on IT_SEL value (see CONFIG4 register),  
PRES/INT outputs card presence status or interruptions (page 9)  
O
3 kV  
PRES/INT  
EVCC  
open-  
drain  
An internal Pull-up (typ 330kΩ,see Table 18)to EVCC can be activated in the pad if  
necessary using INT_PULLUP bit (CONFIG4 register).  
Remark: during power up and before registers configuration, the PRES/INT signal must  
be ignored.  
Microcontroller Interface Function:  
Power-on reset  
A low level on this pin keeps the AT83C24 under reset even if applied on power-on.  
It also resets the AT83C24 if applied when the AT83C24 is running (see Power  
monitoring §).  
I/O  
3 kV  
open-  
drain  
RESET  
VCC  
Asserting RESET when the chip is in Shut-down mode returns the chip to normal  
operation.  
AT83C24 is driving the Reset pin Low on power-on-reset or if power fail on VCC or  
DVCC (see POWERMON bit in CONFIG4 register), this can be used to reset or  
interrupt other devices. After reset, AT83C24 needs to be reconfigured before  
starting a new card session.  
3
4234F–SCR–10/05  

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