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TUSB2136 数据表(PDF) 46 Page - Texas Instruments

部件名 TUSB2136
功能描述  UNIVERSAL SERIAL BUS KEYBOARD HUB CONTROLLER
PDF  50 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TUSB2136 数据表(HTML) 46 Page - Texas Instruments

Back Button TUSB2136 Datasheet HTML 42Page - Texas Instruments TUSB2136 Datasheet HTML 43Page - Texas Instruments TUSB2136 Datasheet HTML 44Page - Texas Instruments TUSB2136 Datasheet HTML 45Page - Texas Instruments TUSB2136 Datasheet HTML 46Page - Texas Instruments TUSB2136 Datasheet HTML 47Page - Texas Instruments TUSB2136 Datasheet HTML 48Page - Texas Instruments TUSB2136 Datasheet HTML 49Page - Texas Instruments TUSB2136 Datasheet HTML 50Page - Texas Instruments  
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background image
4–2
18
× 8 Matrix
8
TUSB2136
P0[7:0]
P1[7:0]
P3.6
P3.7
8
1
1
8
P2[7:0]
Figure 4–2. Keyboard Matrix Scan Connection
C3
R1
R2
R3
R4
R5
VCC
VCC
I2C
EEPROM
VCC
VCC
Vreg
VREN
SUSP
C4
C5
X1
X2
SCL
SDA
PS
PWR OVCR
TUSB2136
C2
VR
TPS76333
C1
5 V
TPS2042
Figure 4–3. Partial Connection Bus Power Mode
3.3 V
1.5 k
Ω
D+
D–
DP0
DM0
1.5 k
Ω
D+
D–
DP0
DM0
Bus PWR
(5 V)
PUR
(a)
(b)
Figure 4–4. Upstream Connection (a) Non-Switching Power Mode (b) Switching Power Mode



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