HYB39S13620TQ- Datasheet, PDF (28/70 Pages) Siemens Semiconductor Group – Special Mode Registers Two color registers Burst Read with Single Write Operation

HYB 39S16320TQ-6/-7/-8
Notes
1. AC timing tests have V_IL = 0.4 V and V_IH = 2.4 V with the timing referenced to the 1.4 V crossover
point. The transition time is measured between V_IH and V_IL. All AC measurements assume
t_T = 1 ns with the AC output load circuit shown.
CLOCK
t _CL
t _SETUP
t _HOLD
INPUT
OUTPUT
1.4 V
t_AC
t _LZ
t _CH
2.4 V
0.4 V
t_T
t_AC
t _OH
1.4 V
t _HZ
SPT03404
I/O
50 pF
Measurement conditions for
t_AC and t_OH
2. If clock rising time is longer than 1ns, a time (t_T/2 − 0.5) ns has to be added to this parameter.
3. If t_T is longer than 1 ns, a time (t_T − 1) ns has to be added to this parameter.
4. These parameter account for the number of clock cycle and depend on the operating frequency
of the clock, as follows: Number of clock cycle = specified value of timing period (counted in
fractions as a whole number)
5. Self Refresh Exit is a synchronous operation and begins on the second positiv edge after CKE
returns high. Self Refresh Exit is not complete until a time period equal to t_RC is satisfied once the
Self Refresh Exit command is registered.
6. Any time that the refresh Period has been exceeded, a minimum of two Auto (CRB) Refresh
commands must be given to “wake-up“ the device.
7. Referenced to the time which the output achieves the open circuit condition, not to output voltage
levels.
Semiconductor Group
28
1998-10-01