ZBasic and ZX microcontrollers.
 
Powerful microcontrollers for engineers, scientists, experimenters and hobbyists.

ZX-24t Microcontroller
[ZX-24t]

$59.95 $49.95

 
 
ZX-24t Microcontroller
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The ZX-24t the low power version of the ZX-24s microcontroller. Since it is largely source code compatible with the ZX-24s, it provides an excellent alternative for applications requiring lower power consumption. It can run at a supply voltage as low as 2.7 volts.

The heart of the ZX-24s is the Atmel AVR ATmega1284P microcontroller running at 7.37MHz. It is accompanied by some support circuitry on a 24-pin DIP module that is pin-compatible with the ZX-24s, the Parallax Basic Stamp and the NetMedia BX-24 microcontrollers. The ATmega1284P microcontroller internally has 16384 bytes of RAM and 4064 bytes of EEPROM available for your programs. The 128K byte internal Flash memory of the mega1284P is partially occupied by special serial downloader firmware leaving 124K bytes of Flash memory for your programs.

The mega1284P has other resources available to your program including two high-speed serial ports, analog-to-digital converters, timers and other sub-systems that may be accessed using routines in the ZBasic System Library. Alternately, some of these resources may be accessed directly using built-in registers.

You may download a schematic of the ZX-24t (identical to that of the ZX-24 except for there being no serial EEPROM) as a PDF or as an ExpressPCB .sch file. To view the latter, you'll have to download free software from ExpressPCB.

ZX-24t Technical Featuresı
Package 24-pin DIP
Operating Temperature -40 to +85°C
Processor Atmel AVR ATmega1284P
Power Requirements 2.7-5.5VDC regulated
Processor Speed Up to 7.37MIPS (7.37MHz)
Program Execution Speed Up to 1.5 million instructions/sec²
User RAM 16K bytes
Non-volatile Data Memory 4064 bytes
Program Memory 124K bytes
Digital I/O pins 16+3³
Analog-to-Digital Channels Up to 8 channels, 10-bit resolution
PWM Channels Four 16-bit, two 8-bit
I2C Support 1 HW channel, 4 SW channels
1-Wire Support Bit and byte level
SPI Support 4 HW channels
Synchronous Serial I/O Support 1-16 bits, MSB or LSB first
Asynchronous Serial I/O Ports 2-HW, up to 4 SW full duplex
X-10 Command Support Yes
Multi-tasking Support Yes
External Interrupts 3
Pin Change Interrupts All I/O lines
Analog Comparator Interrupt Yes
Interval Timer Yes
Exception Handling Support Yes
Floating Point Math Yes - IEEE 32-bit
Advanced Floating Point Functions (sin, cos, log, etc.) Yes
Programming Interface Serial - 115.2K baud
Field Upgradeable System Software No
Supports Inline Assembly Code Yes
Supports Interrupt Handling Code Yes
Notes:
  1) Items in boldface indicate differences from the ZX-24s.
  2) Speed based on the instruction b = b + 1.
  3) The additional 3 I/O lines are outside of the standard 24-pin DIP format.
  Specifications subject to correction and change without notice.

A standard serial port is required to download code to the ZX-24t. If your computer does not have a standard 9-pin serial port but does have a USB port, you may use a USB to serial adapter. Note, however, that some USB to serial adapters are too slow to be useful with the ZX microcontrollers. We have found that adapters based on the second generation FTDI chips seem to work well.

 
 
 
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