參數(shù)資料
型號(hào): DS8005-RRX+
廠商: Maxim Integrated Products
文件頁數(shù): 7/20頁
文件大?。?/td> 0K
描述: SMART CARD AFE DUAL 28SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 25
通道數(shù): 2
功率(瓦特): 700mW
電壓 - 電源,數(shù)字: 1.8V, 3V, 5V
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 28-SOIC W
包裝: 管件
配用: DS8005-KIT#-ND - EVALUATION KIT FOR DS8005
其它名稱: 90-8005+RRX
DS8005
Smart Card Interface
______________________________________________________________________________________
15
Stop Mode (Low-Power Mode)
A low-power state, stop mode, can be entered by forc-
ing the CMDVCC, 5V/3V, and 1_8V input pins to a
logic-high state. Stop mode can only be entered when
the smart card interface is inactive. In stop mode, all
internal analog circuits are disabled. The OFF_ pin fol-
lows the status of the PRES_ pin. To exit stop mode,
change the state of one or more of the three control
pins to a logic-low. An internal 220s (typ) power-up
delay and the 8ms PRES_ debounce delay are in effect
and OFF_ is asserted to allow the internal circuitry to
stabilize. This prevents smart card access from occur-
ring after leaving stop mode. Figure 8 shows the control
sequence for entering and exiting stop mode. Note that
an in-progress deactivation sequence always finishes
before the device enters low-power stop mode.
CMDVCC
1_8V
5V/3V
STOP MODE
OFF_
PRES_
VCC_
DEACTIVATE INTERFACE
ACTIVATE
STOP MODE
DEACTIVATE
STOP MODE
220
μs DELAY
OFF_ FOLLOWS
PRES IN STOP MODE
OFF_ ASSERTED TO
WAIT FOR DELAY
8ms DEBOUNCE
Figure 8. Stop-Mode Sequence
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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