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PDF HT37A20 Data sheet ( Hoja de datos )
| Número de pieza | HT37A20 | |
| Descripción | (HT37A20 - HT37A70) 8-Channel Music Synthesizer MCU | |
| Fabricantes | Holtek Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HT37A20 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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HT37A70/60/50/40/30/20
8-Channel Music Synthesizer MCU
Technical Document
www.datasheet4u·.coTmools Information
· FAQs
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
3.6V~5.5V (HT37A70/60)
3.3V~5.5V (HT37A50/40)
2.4V~5.5V (HT37A30/20)
· Operating frequency: 11.059MHz
· Oscillation modes for the Oscillator clock
fOSC: Crystal (11.059MHz)
1-pin RC oscillation typ. 11.059MHz
· Built-in 8-bit MCU (HT-8) with 320´8 bits RAM
· Built-in 32K´16-bits to 256K´16-bits ROM for
program/data shared
· Eight-level subroutine nesting
· Two 8 bit timer and one 16 bit timer
· Watchdog timer
· Power-down and Wake-up features for power saving
operation
· 16-bit table read instructions for any bank/page read
· Support 16 to 28 bidirectional I/O lines
· Integrated 2-ch stereo or 1-ch mono 16-bit DAC
converter
· Integrated power Amplifier
· Integrated 8-channel 12-bit A/D converter
· Eight channel polyphonic synthesizer
· Low voltage reset (Tolerance ± 10%)
· External interrupt INT
· External 2 Timer clock input
· 4 or 8 touch switch input
· ADPCM decoder
· Bit manipulation instructions
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
General Description
The device is an 8-bit high performance RISC architec-
ture microcontroller specifically designed for various
Music and ADPCM applications. It provides an 8-bit
MCU and 8-channel Wavetable synthesizer. It has a in-
tegrated 8-bit micro controller which controls the syn-
thesizer to generate the melody by setting the special
register. A Power-down function is included to reduce
power consumption.
Selection Table
Most features are common to all devices, the main feature distinguishing them are Program Memory capacity, I/O
count, A/D resolution, DAC output, R2F input and package types. The following table summarizes the main features of
each device.
Part No. VDD Channel OSC
Program
ROM
RAM I/O
Power
Package
D/A CR/F LVR ADC
AMP
Types
HT37A20
HT37A30
2.4V~
5.5V
HT37A40 3.3V~
HT37A50 5.5V
HT37A60 3.6V~
HT37A70 5.5V
32K´16bit
16 1ch-mono ¾
64K´16bit
20 2ch-Stereo Ö
6+2
11.059
MHz
96K´16bit
320´8bit
28
2ch-Stereo
Ö
128K´16bit
28 2ch-Stereo Ö
192K´16bit
28 2ch-Stereo Ö
256K´16bit
28 2ch-Stereo Ö
2.2V/
4
3.3V
¾ 20/28SOP
2.2V/
8
¾
28SOP,
3.3V
48SSOP
8
3.0V
8
28SOP,
12-bit´8 64QFP,
8
3.3V
80LQFP
8
Rev. 1.00
1 February 17, 2009
1 page  
HT37A30
www.datasheet4u.com
O SC2
O SC1
RES
NC
NC
NC
VSS
VDD
V S S _D A C
V D D _D A C
LC H
RCH
1
2
3
4
5
6
7
8
9
10
11
12
HT37A70/60/50/40/30/20
40 39 38 37 36 35 34 33
32 P C 3
31 P C 2
30 P C 1
29 P C 0
28 P A 7
27 P A 6
26 P A 5
25 P A 4
24 P A 3
23 P A 2
22 P A 1
21 P A 0
(0 ,0 )
13 14 15 16 17 18 19 20
Chip size: 2360´3325 (mm)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
Rev. 1.00
5 February 17, 2009
5 Page 
HT37A70/60/50/40/30/20
HT37A20
Pad Name
VDD
www.datasheet4u.cVoDmD_DAC
VSS
VSS_DAC
PA0~PA4
PA5/INT
PA6/TMR0
PA7/TMR1
PC0/K0~
PC3/K3
PD0/RCOUT
PD1/RR
PD2/RC
PD3/CC
RCH
RES
OSC1
OSC2
I/O
Configuration
Option
Function
¾ ¾ Positive digital power supply
¾ ¾ Positive DAC circuit power supply
¾ ¾ Negative digital power supply, ground
¾ ¾ Negative DAC power supply, ground
Bidirectional 8-bit input/output port. Each pin can be configured as a wake-up
I/O
Pull-high
Wake-up
input by configuration option. Software instructions determine if the pin is a
CMOS output or Schmitt Trigger input. Configuration options determine if all
pins on this port have pull-high resistors. Pins PA5, PA6 and PA7 are
pin-shared with INT, TMR0 and TMR1, respectively.
Bidirectional 4-bit input/output port. Software instructions determine if the pin
I/O
Pull-high
is a CMOS output or Schmitt Trigger input. A configuration option determines
if all pins on this port have pull-high resistors. Pins PC0 ~ PC3 are pin-shared
with K0 and K3, respectively (K0~K3 are CR/F function).
Bi-directional 4-bit I/O port. Software instructions determined the CMOS out-
put or Schmitt trigger with a pull-high resistor (determined by pull-high option:
I/O
Pull-high
by option).
Pins PD0~PD3 are pin-shared with CR/F OSC input pins RCOUT, RR, RC
and CC.
RCOUT, RR, RC and CC control pin for CR/F Function.
O ¾ Audio right channel output
I ¾ Schmitt Trigger reset input, active low
OSC1, OSC2 are connected to an external RC network or external crystal,
I
O
Crystal or RC
determined by configuration option, for the internal system clock. If the RC
system clock option is selected, pin OSC2 can be used to measure the sys-
tem clock at 1/8 frequency.
Note: 1. Each pin on PA can be programmed through a configuration option to have a wake-up function.
2. Individual pins can be selected to have pull-high resistors.
3. Because the two timers are used by MIDI the external timer pin functions are disabled.
Absolute Maximum Ratings
Supply Voltage ..........................VSS-0.3V to VSS+5.5V
Input Voltage .............................VSS-0.3V to VDD+0.3V
IOL Total ..............................................................150mA
Total Power Dissipation .....................................500mW
Storage Temperature ...........................-50°C to 125°C
Operating Temperature ..........................-20°C to 70°C
IOH Total............................................................-100mA
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Rev. 1.00
11 February 17, 2009
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet HT37A20.PDF ] | |
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