MSP50C32, MSP50C33, MSP50C34
MSP50P34, MSP50C37, MSP50P37
MIXED-SIGNAL PROCESSORS
SPSS019A 鈥?MAY 1997 鈥?REVISED OCTOBER 1998
D
D
D
D
D
D
D
D
D
D
Dual Programmable LPC-12 Speech
Synthesizers
Simultaneous LPC and PCM Waveforms
8-Bit Microprocessor with 61 instructions
32 Twelve-Bit Words and 224 Bytes of RAM
3.3V to 6.5V CMOS Technology for Low
Power Dissipation
Direct Speaker Drive Capability
Mask Selectable Internal or External Clock
Internal Clock Generator that Requires No
External Components
Two Software-Selectable Clock Speeds
10-kHz or 8-kHz Speech Sample Rate
N PACKAGE
(TOP VIEW)
PA6
PA5
PA4
PA3
PA2
PA1
PB1/OSC OUT
OSC IN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
PA7
PB0
PA0
DAC +
DAC 鈥?/div>
V
DD
10
V
SS
9
INIT
description
The MSP50x3x family uses a revolutionary architecture to combine an 8-bit microprocessor, two speech
synthesizers, ROM, RAM, and I/O in a low-cost single-chip system. The architecture uses the same arithmetic
logic unit (ALU) for the two synthesizers and the microprocessor, thus reducing chip area and cost and enabling
the microprocessor to do a multiply operation in 0.8
碌s.
The MSP50x3x family features two independent
channels of linear predictive coding (LPC), which synthesize high-quality speech at a low data rate. Pulse-code
modulation (PCM) can produce music or sound effects. LPC and PCM can be added together to produce a
composite result. For more information, see the MSP50x3x User鈥檚 Guide (literature number SPSU006).
Table 1. MSP50x3x Family
DEVICE
MSP50C32
MSP50C33
MSP50C34
MSP50P34
MSP50C37
MSP50P37
AMOUNT OF ROM/PROM
16K bytes mask ROM
32K bytes mask ROM
64K bytes mask ROM
64K bytes PROM
16K bytes mask ROM
16K bytes PROM
9/10 I/O lines
9/10 I/O lines
9/10 I/O lines, 24 I/O lines in die form
9/10 I/O lines
18 I/O lines, A/D converter/analog amplifier
18 I/O lines, A/D converter/analog amplifier
FEATURES
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
漏
1998, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
3
1
2
3
4
5
6
7
8
9
