YTD439 Datasheet, PDF (12/15 Pages) List of Unclassifed Manufacturers – ISDN BRI controller for Terminal Equipment with built-in DSU

❍ DC Characteristics
U Reference Point Receiver (AVDD1= 5.0 V, Top = 25 °C)
Parameter
Allowable load impedance
at output
Receive buffer input
impedance
Analog signal reference
voltage
ADC self-bias
Symbol Condition
ZO
Note 1
Min.
30
Typ.
Max.
Unit
kΩ
Zi1
Note 2
10
MΩ
VSG
Note 3
2.45
2.50
2.55
V
VRT
Note 4 0.7AVDD1 - 0.1 0.7AVDD1 0.7AVDD1 + 0.1 V
VRB
Note 5 0.3AVDD1 - 0.1 0.3AVDD1 0.3AVDD1 + 0.1 V
Note 1: Applies to the SGR pin.
Note 2: Applies to the RXU1 and RXU2 pins.
Note 3: Applies to the SGR pin (open).
Note 4: Applies to the VRT pin.
Note 5: Applies to the VRB pin.
DSU Digital Block (DVDD1 = 3.3 ± 0.3 V or 5 V ± 5%, Top = 0 to 70 °C)
Parameter
Symbol Condition
Min.
Note 1 0.8DVDD1
High-level input voltage VIH
Note 2 0.9DVDD1
Low-level input voltage
Note 1
VIL
Note 2
High-level output voltage VOH
Note 3
Note 4
DVDD1 - 0.4
AVDD1 - 0.4
Low-level output voltage VOL
Note 3
Note 4
Leakage current
IL
- 10
Off-state leak current
ILZ
- 10
Typ.
Max.
0.2DVDD1
0.1DVDD1
0.4
0.4
10
10
Unit
V
V
V
V
V
V
V
V
µA
µA
Note 1: Applies to NOR, REV, /RST_NT, POWM, TSMP, LPSEL, NTSEL, /TEST1, /TEST2 pins.
Note 2: Applies to the X1 pin.
Note 3: Applies to LPSW, LP2A, LPM3, CNL, and CRD pins.
Condition: IOH = - 0.4 mA, IOL = 1.2 mA
Note 4: Applies to UDM0, UDM1, UDP0, and UDP1 pins.
Condition: AVDD1 = 4.75 to 5.25 V, Top = 25 ºC, IOH = - 0.4 mA, and IOL = 1.2 mA
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