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Persistor CF1 User's Manual

Features and Specifications

May 1999

Revision 1.04
 Persistor Instruments Inc.
© 1998 All rights reserved.

Features

  • Low Power 3.3 Volt Operation
    • <10µA Suspend Mode (1s wake response)
    • <250µA Sleep Mode (10ms wake response)
    • <1mA Wait Mode (10µs wake response)
    • 5mA to 50mA Adjustable Run Modes
    • 300mA Regulator with 3.6V-20V input
  • On Demand 2.5MIPS Processing Power
    • MC68CK338 (68020 Instruction Set)
    • 1MB Flash for BIOS, PicoDOS, and Programs
    • 256KB of Battery Backed Static RAM
    • C/C++/EC++ Support with 250+ Function BIOS
  • CompactFlash™ Header and File System
    • 4MB to 96MB of Secure, Transportable Storage
    • Win95/98/NT/CE and MacOS Compatible
    • 300,000 Write Cycles, MTBF > 1,000,000 hr.
  • Integrated Peripherals for Instrument Designs
    • Real Time Clock with Battery Backup (Y2K-ok)
    • UART w/dual RS-232 Driver (TX, RX, RTS, CTS)
    • 4 Channel Queued SPI (synchronous serial)
    • 15 Counter/Timer/Digital I/O Lines
    • 2 Chip Selects, 16 Data, and 18 Address Lines
    • 3 Interrupt Request or Digital I/O Lines
  • Designed for Easy Plug-in Operation
    • Extended Temperature Range: -25°C to +75°C
    • Standard 0.1" Headers, All Pins on 0.1" grids
    • 1.4" x 2.5" x 0.6" or 2" x 2.5" with CF Card

Applications

  • Battery Powered Systems
  • Portable Data Loggers
  • Hand Held Instrumentation
  • Wave/Tide/Current Loggers
  • GPS Navigation Recorders
  • Seismic Detectors/Recorders
  • Surveying and Mapping
  • Bioscience Monitors
  • Atmospheric Loggers
  • Transportation Loggers
  • Surveillance and Intelligent Weaponry

Introduction

Think of the CF1 as a miniature, but full featured PC with a DOS-like operating system that plugs into and becomes part of your custom instrumentation. Instead of tethering your data acquisition electronics to an external PC, you build in the PC as an integral part of the design.

Like a PC, the CF1 has a "BIOS" and "Disk Operating System" (PicoDOS) for its "hard drive" (CompactFlash cards) that use a standard Windows compatible directory and file system. There's COM port with RS-232 drivers for RXD, TXD, CTS, and RTS, and a built-in "power supply" (3.3 volt regulator), 256KB of RAM for running programs or buffering data, and full address and data bus expansion for additional memory and peripherals.

Unlike a PC, the CF1 has advanced power management circuitry and integrated subsystems that make it particularly well suited for remote and battery powered applications. Its QSPI (Queued Serial Peripheral Interface) module makes it easy to add up to fourteen A-D converters, D-A converters, UARTs, analog multiplexors, and parallel I/O lines with a simple high speed four wire interface. Fifteen counter/timer pins perform 16 bit pulse width/period measurement, 7 to 16 bit pulse width modulation, input edge capture, output compare, or fast digital I/O.

Absolute Maximum Ratings

VBAT to GND:

+/-20V

Operation Temperature:

-25 Deg. C to +75 Deg. C

VREG to VBBK and GND:

3.9V

Storage Temperature:

-45 Deg. C to +85 Deg. C

Digital Signals to GND:

-0.3V to VREG+0.3V

Humidity:

0 to 95% (non-cond)

 

Physical Specifications

SI

US

Weight

No CF Card:

< 1 oz

With CF Card:

< 1.2 oz

Length
63.5 mm
2.5 in

Width

No CF Card:
35.5 mm
1.4 in

With CF Card:
51.0 mm
2.0 in

Thickness
14.5 mm
0.57 in

Electrical Characteristics

Min

Typ

Max

Units

VBAT Input Voltage

Absolute Maximum:
-20

20
V

Operating:
3.6

20
V

VREG Input Voltage

Absolute Maximum:
-0.3

3.9
V

Operating:
3.1
3.3
3.6
V

VBBK Input Voltage

Absolute Maximum:
-0.3

3.9
V

Operating:
2.7
3.3
VREG
V

Voltage on any pin

Absolute Maximum:
-0.3

VREG
+0.3
V

VBAT Operating Voltage

-25 to +75 Deg. C: at 40mA:
3.6

20
V

-25 to +30 Deg. C: at 75mA:
3.6

20
V

-25 to +75 Deg. C: at 75mA:
3.6

12.8
V

-25 to +30 Deg. C: at 250mA:
5.0

8.4
V

-25 to +75 Deg. C: at 250mA:
5.0

6.0
V

VREG Operating Voltage

3.1
3.3
3.6
V

VBBK Input Voltage

2.7
3.0
VREG
V

VBBK Operating Current

Backup/Suspend:

2.5
25
uA

VREG > VBBK:

0.1
1
uA

VREG Operating Current2

16MHz Constant CF Write:

100
125
mA

16MHz (CF Idle):

55
75
mA

8 MHz (CF Idle):

32
45

4 MHz (CF Idle):

20
30

320kHz (CF Idle):

4
15
mA

LPSTOP (CF Idle):

300
500
uA

LPSTOP (no CF):

240
400
uA

Suspend:

6
20
uA

System Clock

0.160

16
MHz

PLL Crystal

+/-100ppm @ 25 Deg.C

40.000

kHz

RTC Crystal

+/-50ppm @ 25 Deg. C

32.768

kHz

Notes:

  1. Environmental specifications do not apply to CompactFlash cards which are available in different ranges.
  2. Other techniques can be applied to reduce the current even further

 

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Copyright (C) 1998 Persistor Instruments Inc. - All Rights Reserved