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STA003T Scheda tecnica(PDF) 5 Page - STMicroelectronics

Il numero della parte STA003T
Spiegazioni elettronici  MPEG 2.5 LAYER III AUDIO DECODER
PDF  32 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA003T Scheda tecnica(HTML) 5 Page - STMicroelectronics

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background image
VDD
100nF
1
2
VDD
100nF
14
13
VSS
VDD
100nF
16
15
VDD
100nF
23
22
VSS
VSS
VSS
17
18
27
28
26
RESET
24
TESTEN
25
SCANEN
VDD_5/CLK_OUT
VDD
PVSS
PVDD
100nF
4.7
µF
4.7
µF
PVDD
PVSS
VSS
10K
1K
4.7nF
PVSS
470pF
19
20
21
8
7
6
5
12
11
10
9
4
3
XTO
XTI
SCR_INT
BIT_EN
SCKR
SDI
OCLK
LRCKT
SCKT
SDO
SCL
SDA
D99AU1004
Figure 3. Test Circuit
IOL
IOH
CL
VREF
VDD
OUTPUT
D98AU967
Test Load Circuit
Output
IOL
IOH
CL
VREF
SDA
1mA
100pF
3.6V
Other Outputs
100
µA100µA
100pF
1.5V
Test Load
2. FUNCTIONAL DESCRIPTION
2.1 - Clock Signal
The STA003T input clock is derivated from an ex-
ternal source or from a 14.72 MHz crystal.
XTI is an input Pad with specific levels.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VIL
Low Level Input Voltage
VDD-1.8
V
VIH
High Level Input Voltage
VDD-0.8
V
CMOS compatibility
The XTI pad low and high levels are CMOS compatible; XTI pad noise margin is better than typical
CMOS pads.
TTL compatibility
The XTI pad low level is compatible with TTL while the high level is not compatible (for example if VDD =
3V TTL min high level = 2.0V while XTI min high level = 2.2V)
STA003T
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