W99681CF Datasheet, PDF (14/78 Pages) Winbond – JPEG USB Dual Mode Camera Chip

W99681CF
XIN
11
XOUT
12
CLK24M
20
EXTMCU
39
TEST#
40
INTXTR
44
RSTIN#
45
PWRDWN# 46
PWRDWN 47
SUSPND
48
RSTOUT
56
I Reference frequency input from a crystal or a clock source. It
should be 48 Mhz if PLL is off (PLLSEL = 0) or 12 Mhz if PLL is
on (PLLSEL = 1) for full-speed device.
O Oscillator output to a crystal. This pin is left unconnected if an
external clock source is employed.
O 24 Mhz Clock Output.
I External Micro Controller (MCU). 0: no; 1: yes.
IU Test Input.
I Internal USB Transceiver Select. 0: off; 1: on.
IU System Reset Input.
O Low-active Power Down Control. This pin is active upon reset,
suspended, or when the Camera Power-on Control register
(CR00_4) is 0. Once active, it remains active until the CR00_4 is
set to 1.
O High-active Power Down Control. This pin is active upon reset,
suspended, or when the Camera Power-on Control register
(CR00_4) is 0. Once active, it remains active until the CR00_4 is
set to 1.
O USB Suspend Mode. This pin is active when the W99681CF is in
the suspend mode. It is cleared to 0 when the W99681CF is
resumed, or reset by RSTIN# pin or a USB reset command.
O Reset Output. This pin is active when RSTIN# pin is active, or a
USB reset command is received.
Power and Ground (27 pins)
Pin Name
VDD5V
VDDP
VSSP
USBVDD
USBVSS
AVDD
AVSS
VDDI
Pin Number
128
1, 13, 30, 61,
71, 91, 107
10, 25, 64, 69,
79, 87, 96,
111, 126
52
49
42
43
19, 60, 108
Type
P
P
G
Description
5V Buffer Power Supply. Provide 5V power to the I/O buffers for
5V input tolerance. +4.4 V ~ +5.25 V.
Buffer Power Supply. Provide isolated power to the I/O buffers
for improved noise immunity. +3.3 V ± 0.3 V.
Buffer Ground.
P USB Transceiver Power Supply. +3.3 V ± 0.3 V.
G USB Transceiver Ground.
P PLL Power Supply. +3.3 V ± 0.3 V.
G PLL Ground.
P Core Logic Power Supply. +3.3 V ± 0.3 V.
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