saa7803 NXP Semiconductors, saa7803 Datasheet - Page 61

• Manufacturer Part Number: saa7803
• Description: Saa7803 One Chip Cd Audio Device
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8. Limiting values
9397 750 13695
Objective data sheet
7.2 Transfer and execution of code
7.3 Operating speeds
Code is transferred to the development memory via a JTAG interface using the protocol
specified in the IEEE1149.1 standard. A detailed description of the download and transfer
stages is not given since customer software has been developed to facilitate this task.
Two types of external memory are used in the MCM. Development code is initially
streamed to the flash ROM and then transferred to the SRAM from where it is executed.
Code is executed from the SRAM to take advantage of its superior access times.
Code execution using development memory is slower than execution from the mask
programmed ROM. The reasons for this are:
Table 16:
In accordance with the Absolute Maximum Rating System (IEC 60134).
[1]
[2]
Symbol Parameter
V
V
V
V
V
T
P
•
•
stg
DDD
DDP
DDA
LCD
I
tot
The SMIU interface to development memory requires additional clock cycles to fetch
instructions
Development memory locations are only 16 bits wide whereas masked programmed
ROM locations are 32 bits wide.
All digital input and bidirectional pins are 5 V tolerant
Maximum absolute voltage at receiver inputs during transient conditions. Transient voltage time durations
are limited to t
digital supply voltage
periphery supply voltage
analog supply voltage
analog LCD supply voltage
input voltage
storage temperature
total power dissipation
Limiting values
analog inputs
5 V tolerant digital inputs
receiver input
settle,CM
(10 ms maximum).
Rev. 01 — 19 April 2005
Conditions
transient
playing disc at 1
with headphones
enabled
[1]
[2]
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Min
-
One chip CD audio device
0.5
0.5
0.5
0.5
0.5
0.5
0.5
55
SAA7803
Max
+2.5
+3.6
+3.6
+5.5
V
5.5
<tbd>
+125
274
DDA
+ 0.5 V
61 of 74
Unit
V
V
V
V
V
V
mW
C