MT9072 Datasheet, PDF (242/275 Pages) Zarlink Semiconductor Inc – Octal T1/E1/J1 Framer

MT9072
Data Sheet
AC Electrical Characteristics - Timing Parameter Measurement Voltage Levels* - Voltages are with respect to
ground (VSS) unless otherwise stated.
Characteristics
Sym.
Level
Units
Conditions/Notes
1 Threshold Voltage
V_T
1.5
V
0.5∗V_DD
V
TTL
CMOS
2 Rise/Fall Threshold Voltage High
V_HM
2.0
V
0.7∗V_DD
V
TTL
CMOS
3 Rise/Fall Threshold Voltage Low
V_LM
0.8
V
0.3∗V_DD
V
TTL
CMOS
* Timing for output signals is based on the worst case result of the combination of TTL and CMOS thresholds.
ALL SIGNALS
t_IRF, t_ORF
Timing Reference Points
t_IRF, t_ORF
V_HM
V_T
V_LM
Figure 27 - Timing Parameter Measurement Voltage Levels
AC Electrical Characteristics - Motorola Microprocessor Timing*
Characteristics
Sym. Min. Typ.^‡ Max. Units
Test Conditions
1 DS low
2 DS High
3 CS Setup
4 CS Hold
5 R/W Setup
6 R/W Hold
7 Address Setup
8 Address Hold
9 Data Delay Read
10 Data Hold Read
11 Data Active to High Z Delay
t_DSL
115
t_DSH
50
t_CSS
0
t_CSH
0
t_RWS
15
t_RWH
0
t_ADS
15
t_ADH
40
t_DDR
100
t_DHR
5
t_DAZ
50
ns
ns
ns
ns
ns
ns
ns
ns
ns C_L = 150 pF, R_L = 1 kΩ
ns C_L = 150 pF, R_L = 1 kΩ
ns C_L = 150 pF, R_L = 1 kΩ,
Note 1
12 Data Setup Write
13 Data Hold Write
14 Cycle Time
t_DSW
15
ns
t_DHW
25
ns
t_CYC
165
ns
‡Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
Note 1. High impedance is measured by pulling to the appropriate rail with R_L, with timing corrected to cancel time taken to discharge C_L.
242
Zarlink Semiconductor Inc.