
SPRS457E
– MARCH 2009 – REVISED JUNE 2011
NAME
DESCRIPTION
MIN
NOM
MAX
UNIT
0.75*VDD1
High-level input voltage I/O (1.2-V or 1.35-V)
VIH12RTC
2_PRTCS
V
(PWRCNT/PWRST/RTCXI/RTCXO)
S
HIgh-level switchable input
3.3V I/O mode
2
voltage(4)
(VDD_AEMIF1_18_33,
VIH1833
V
VDD_AEMIF2_18_33,
1.8V I/O mode
0.7VDDS18
VDD_ISIF_18_33 powered
I/Os)(5)(6)(7)(8)
Low-level input voltage(4), excludes switchable I/O
0.8
V
(3.3V I/O)
VIL
Low-level input voltage(4), non-DDR2 I/O, excludes switchable I/O
0.3*VDDS
V
(1.8V I/O)
18
0.25*VDD1
RTC Low-level input voltage(4)
VIL12RTC
2_PRTCS
V
Voltage Input
(1.2V I/O)
S
Low
Low-level switchable input
3.3V I/O mode
0.8
voltage(4)
(VDD_AEMIF1_18_33,
VIL1833
V
0.3*VDDS
VDD_AEMIF2_18_33,
1.8V I/O mode
18
VDD_ISIF_18_33 powered
I/Os)
VREF
DAC reference voltage
475
500
525
mV
RBIAS
DAC full-scale current adjust resistor
2376
2400
2424
HD 3CH DAC(9)
RLOAD_X
Output resistor
74.25
75
75.75
CBG
Bypass capacitor
0.1
uF
ROUT
Output resistor (ROUT), between TVOUT and VFB pins
2128.5
2150
2171.5
RFB
Feedback resistor, between VFB and IDACOUT pins.
2079
2100
2121
Video Buffer(9)
RBIAS
Full-scale current adjust resistor
2400
CBG
Bypass capacitor
0.1
uF
USB_VBUS
USB external charge pump input
0
5.25
V
USB
VDDA12LDO_USB
Internal LDO output(10)
0.22
F
fs
Sampling frequency
8
16
kHz
Voice Codec
-
System clock
256fs
kHz
ADC
FSCLK
SCLK frequency
2
MHz
Default Temperature
0
85
°C
Operating case temperature
Temperature
Tc
Extended Temperature [D version
range
-40
85
°C
devices]
(5)
VDD_AEMIF1_18_33 : can be used as a power supply for EM_A[3:13], EM_BA0, EM_BA1, EM_CE[0], EM_ADV, EM_CLK,
EM_D[8:15 ]pins, Keyscan, or GPIO pins.
(6)
VDD_AEMIF2_18_33: can be used as a power supply for EM_A[0:2], EM_CE[1], EM_WE, EM_OE, EM_WAIT, EM_D[0:7] pins, HPI,
Keyscan, or GPIO pins.
(7)
Example 1: VDD_AEMIF2_18_33 at 1.8-V for 8-bit NAND VDD_AEMIF1_18_33 at 3.3-V for GPIO.
Example 2: VDD_AEMIF1_18_33 and VDD_AEMIF2_18_33 at 1.8-V for 16-bit NAND.
(8)
VDD_ISIF_18_33: can be used as a power supply for VPFE pins (CIN[7:0], YIN[7:0], C_WE_FIELD, PCLK), or SPI3
(SPI3_SCLK,SPI3_SIMO,SPI3_SCS[0], SPI3_SCS[1]) or USBDRVVBUS or GPIO pins.
(9)
See
Section 6.12.2.4. Also, resistors should be E-96 spec line (3 digits with 1% accuracy).
(10) For proper device operation, this pin must be connected to a 0.22
μF capacitor to VDDA12LDO_USB.
Copyright
2009–2011, Texas Instruments Incorporated
Device Operating Conditions
73