saa1575hl NXP Semiconductors, saa1575hl Datasheet - Page 7

• Manufacturer Part Number: saa1575hl
• Description: Global Positioning System Gps Baseband Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1999 Jun 04
A11
V
V
A10
A9
A8
V
V
A7
A6
A5
A4
A3
V
V
A2
A1
PMCS
TP2
RSTIME
TP1
WRH
WRL
RD
SYMBOL
CC(P)
SS
CC(core)
SS
CC(P)
SS
Global Positioning System (GPS)
baseband processor
PIN
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
External memory address bus bit 11: 19-bit address bus; used to address external
RAM and program memory
Main I/O power supply: 2.7 to 5.5 V operating range; main supply for the periphery
in normal operation
Ground: 0 V reference
External memory address bus bit 10: 19-bit address bus; used to address external
RAM and program memory
External memory address bus bit 9: 19-bit address bus; used to address external
RAM and program memory
External memory address bus bit 8: 19-bit address bus; used to address external
RAM and program memory
Main core power supply: 2.7 to 3.6 V only; main supply for the core in normal
operation
Ground: 0 V reference
External memory address bus bit 7: 19-bit address bus; used to address external
RAM and program memory
External memory address bus bit 6: 19-bit address bus; used to address external
RAM and program memory
External memory address bus bit 5: 19-bit address bus; used to address external
RAM and program memory
External memory address bus bit 4: 19-bit address bus; used to address external
RAM and program memory
External memory address bus bit 3: 19-bit address bus; used to address external
RAM and program memory
Main I/O power supply: 2.7 to 5.5 V operating range; main supply for the periphery
in normal operation
Ground: 0 V reference
External memory address bus bit 2: 19-bit address bus; used to address external
RAM and program memory
External memory address bus bit 1: 19-bit address bus; used to address external
RAM and program memory
External program memory select: external program memory read strobe
Test pin: tie LOW
Reset timer control: this controls the on-chip reset timer. If this is HIGH, reset will be
de-asserted approximately 10 ms after both PWRDN and PWRFAIL go HIGH. If this
is LOW, reset will be de-asserted approximately 10 s after both
PWRDN and PWRFAIL go HIGH.
Test pin: tie LOW
Write MSB: write strobe for external data memory; asserted for both MSB and word
write operations; input mode only used for test purposes
Write LSB: write strobe for external data memory; asserted for both LSB and word
write operations; input mode only used for test purposes
External data read: read strobe for external data memory; input mode only used for
test purposes
7
DESCRIPTION
SAA1575HL
Product specification