PXB4219E Datasheet, PDF (266/290 Pages) Infineon Technologies AG – Interworking Element for 8 E1/T1 Lines

IWE8, V3.4
PXB 4219E, PXB 4220E, PXB 4221E
Electrical Characteristics
Table 51 RAM Interface AC Timing Characteristics
No. Parameter
Limit Values
Min
Typ
Max
1
Delay RMCLK rising to RMADR
1
11
2
Delay RMCLK rising to RMADC
1
7
Delay RMCLK rising to RMOE
1
7
Delay RMCLK rising to RMWR
1
7
Delay RMCLK rising to RMCS
1
7
3
Setup time RMDAT before RMCLK 11
rising (all read cycles)
4
Hold time RMDAT after RMCLK rising 0
(all read cycles)
5
Delay RMCLK falling to RMDAT low 0
8
impedance (write cycle W1)
6
Delay RMCLK rising to RMDAT
6
12
(write cycles W2 to W5)
7
Delay RMCLK falling to RMDAT high 0
8
impedance (write cycle W5)
8
Delay CLOCK to RMCLK
6
12
9
T_RMCLK: Period RMCLK
9A F_RMCLK: Frequency RMCLK
T_CLOCK
F_CLOCK
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
Data Sheet
266
2003-01-20