C167CS-L datasheet(69/81 Pages) INFINEON

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C167CS-4R

C167CS-L

Data Sheet

V2.2, 2001-08

The bandwidth of a parameter (minimum and maximum value) covers the whole

operating range (temperature, voltage) as well as process variations. Within a given

device, however, this bandwidth is smaller than the specified range. This is also due to

interdependencies between certain parameters. Some of these interdependencies are

described as relative timing (see below) or in additional notes (see standard timing).

General Notes For The Following Bus Timing Figures

These standard notes apply to all subsequent timing figures. Additional individual notes

are placed at the respective figure.

1) The falling edge of signals RD and WR/WRH/WRL/WrCS is controlled by the Read/Write delay feature

(bit BUSCON.RWDCx).

2) The rising edge of signal WR/WRH/WRL/WrCS is controlled by the early write feature (bit BUSCON.EWENx).

3) A bus cycle is extended here, if MCTC waitstates are selected or if the READY input is sampled inactive.

4) A bus cycle is extended here, if an MTTC waitstate is selected.

Table 18

External Bus Relative Timing (Operating Conditions apply)1)

1) Not 100% tested, guaranteed by design and characterization.

Parameter

Symbol

Limits

Unit

min.

max.

Output hold time after WR rising edge2)

Valid for: address, write data out

2) See also note 3) in Table 17.

t50

CC 0

–

Input hold time after RD rising edge

Valid for: read data in

t51

SR –

0ns

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