参数资料
型号: M48T212A-85MH1TR
厂商: STMICROELECTRONICS
元件分类: 时钟/数据恢复及定时提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO44
封装: HATLESS, PLASTIC, SOIC-44
文件页数: 27/30页
文件大小: 155K
代理商: M48T212A-85MH1TR
M48T212A
6/30
Figure 4. Hardware Hookup
Note: 1. See description in Power Supply Decoupling and Undershoot Protection.
2. Traces connecting E1CON and E2CON to external SRAM should be as short as possible.
3. If the second chip enable pin (E2) is unused, it should be tied to VOUT.
AI03049
A0-A3
DQ0-DQ7
A
VCC
W
G
WDI
RSTIN1
RSTIN2
VCAP
E
E2
(3)
VCC
A0-Axx
0.1
F
0.1
F
3.3V
E2CON
RST
IRQ/FT
M48T212A
CMOS
SRAM
VOUT
E1CON
Note 2
MOTOROLA
MTD20P06HDL
VCCSW
1N5817
(1)
EX
E
A0-A18
E
VCC
CMOS
SRAM
VSS
SuperCap Supply
A0-Axx
X0
XI
32 kHz
Crystal
E2
(3)
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