PSB7238 SIEMENS [Siemens Semiconductor Group], PSB7238 Datasheet - Page 181

• Manufacturer Part Number: PSB7238
• Description: Joint Audio Decoder-Encoder - Multimode
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Inputs are driven to 2.4 V for a logical “1” and to 0.4 V for a logical “0”. Timing
measurements are made at 2.0 V for a logical “1” and 0.8 V for a logical “0”. The AC
testing input/output waveforms are shown in Figure 55.
Figure 55
7.7
7.7.1
Conditions as above (Recommended Operating Conditions) at T
7.7.2
Siemens/Intel Bus Mode
Figure 56
Figure 57
Semiconductor Group
RD x CS
AD0 - AD7
AC Characteristics
Testing Waveform
Parallel Host Interface Timing
Microprocessor Read Timing
Microprocessor Write Timing
t
RD
t
RR
Data
181
t
DF
t
RI
Electrical Specification
A
= 0 to 70 °C.
Data Sheet 1998-07-01
ITT00712
PSB 7238