pef2256e Infineon Technologies Corporation, pef2256e Datasheet - Page 46

• Manufacturer Part Number: pef2256e
• Description: E1/t1/j1 Framer And Line Interface Component For Long- And Short-haul Applications
• Manufacturer: Infineon Technologies Corporation

Table 5
Pin (Ball)
No.
Power Supply
80 (B2)
4 (D3)
6 (D2)
9 (E2)
74 (A4)
9 (A5)
24 (C8)
34 (E2)
41 (G4)
58 (J6)
71 (J9)
User’s Manual
Hardware Description
Name
VSEL
V
V
V
V
V
DDR
DDX
DDP
DDC
DD
Miscellaneous Pin Definitions
Pin
Type
I
S
S
S
S
S
Buffer
Type
PU
Function
Voltage Selection for Digital Core
Selects between single and dual power
supply mode.
0
1
Note: Dual
Positive Power Supply - Analog Receiver
3.3 V ± 5%
Positive Power Supply - Analog
Transmitter
3.3 V ± 5%
Power Supply - System PLL
3.3 V ± 5%
Power Supply - Digital Core
Connected to a 1.8-V ± 10% power supply in
dual supply mode.
Attention: This pin must not be used to
Positive Power Supply - Digital Pads
3.3 V ± 5%
46
B
B
VSEL_0, dual power supply mode,
VDDC must be supplied with 1.8 V
while al other power supplies require
3.3 V.
VSEL_1, single power supply mode, all
power supply voltages are 3.3 V.
recommended
dissipation.
supply external devices.
power
for
supply
External Signals
DS1.1, 2003-10-23
lowest
PEF 2256 H/E
mode
FALC
power
®
56
is