參數(shù)資料
型號: AK4184
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: TSC with Keypad Scanner and GPIO Expander
中文描述: 臺糖與鍵盤掃描儀和GPIO擴展
文件頁數(shù): 8/36頁
文件大?。?/td> 597K
代理商: AK4184
[AK4184]
MS0603-E-00
2007/04
8
SWITCHING CHARACTERISTICS
Ta = -40
°
C to 85
°
C, AVDD = 2.5V to 3.6V, IOVDD = 1.6V to AVDD, CL = 20pF
Parameter
Internal oscillator frequency
Touch Panel (A/D Converter)
SCLK period
Sampling Time (Rin=600
Ω
)
Throughput Rate
Conversion Time
Timing Characteristics
SCLK Pulse Width Low
Pulse Width High
CSN “
” to First SCLK “
CSN “
” to DOUT Tri-State Disabled
Data Setup Time
Data Hold Time
Data Output Delay after SCLK“
CSN “
” to DOUT Hi-Z state
CSN “H” Time
SCLK “
” to CSN “
Reset Timing
RESETN Pulse Width (Note 5)
Note 5. Device is reset by pull RESETN pin to “L”.
Symbol
fosc
min
0.9
typ
1.3
max
1.7
Units
MHz
tCP
tSam
fs
tCONV
200
1.5
-
24
-
-
-
-
1000
-
125
-
ns
μ
s
KHz
tCP
tCKL
tCKH
tCSS
tDV
tDS
tDH
tDD
tCDZ
tCSW
tCSH
80
80
300
-
40
40
-
-
150
50
-
-
-
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
50
-
-
50
70
-
-
tRST
150
-
-
ns
CSN
SCLK
tCSS
tCKH
tCKL
tDH
tDD
tCSH
VIL
DIN
tDS
DOUT
tDV
tCDZ
50%IOVDD
tCP
tCSW
VIH
VIL
VIH
VIL
VIH
Hi-Z
D10
D11
Hi-Z
D0
Figure 1. Timing Diagram
tRST
VIL
RESETN
Figure 2. Power-down & Reset Timing
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