QW1 TechTools, QW1 Datasheet - Page 28

PROGRAMMER PIC MCU QUICKWRITER

QW1

Manufacturer Part Number
QW1
Description
PROGRAMMER PIC MCU QUICKWRITER
Manufacturer
TechTools
Series
QuickWriter™r
Type
QuickWriterr
Datasheets

Specifications of QW1

Contents
MCU Programmer with In-Circuit Serial Programming Cable and Optional GANG Adapters
For Use With/related Products
PIC Micro® MCU
For Use With
CBL-ICSP - CABLE PROG QUICKWRITER SERIALQW-4SSOP18 - ADAPTER QUICKWRITER 4GANG 18SSOPQW-4SSOP28 - ADAPTER QUICKWRITER 4GANG 28SSOPQW-4SO8/14W - ADAPT QUICKWRTR 4GANG 8/14SOIC WQW-4SO8/14N - ADAPT QUICKWRTR 4GANG 8/14SOIC NQW-4SOIC18 - ADAPTER QUICKWRITER 4GANG 18SOICQW-4ZIF18 - ADAPTER QUICKWRITER 4-GANG 18ZIFQW-4SOIC28 - ADAPTER QUICKWRITER 4GANG 28SOICQW-4PLCC44 - ADAPTER QUICKWRITER 4GANG 44PLCCQW-4ZIF40/28 - ADAPT QUICKWRITER 4GANG 40/28ZIFMP-ZIF14 - ADAPTER QUICKWRITER 14-PIN ZIFMP-SOIC8/14 - ADAPTER QUICKWRITER 8/14-SOICMP-SSOP18 - ADAPTER QUICKWRITER 18-SSOPMP-SSOP28 - ADAPTER QUICKWRITER 28-SSOPMP-14000 - ADAPTR QUICKWRTR PIC14000 28-PINMP-SOIC18 - ADAPTER QUICKWRITER 18-SOICMP-SOIC28 - ADAPTER QUICKWRITER 28-SOICMP-PLCC44 - ADAPTER QUICKWRITER 44-PIN PLCCMP-ZIF18/28 - ADAPTER QUICKWRITER 18/28PIN ZIFMP-ZIF40 - ADAPTER QUICKWRITER 40-PIN ZIF

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
QW152
Manufacturer:
Laird Technologies IAS
Quantity:
135
22
Details
PicTools Manual 3.0
programming cycle. In self-powered target boards, this requires that we ask the operator to do the
power cycling for us. This can become tedious for the operator. Even with devices that only require
a single power up and down, it would still be nice to free the operator from this burden. To enable
full automation of in-circuit programming, without violating programming specs, QuickWriter
provides a control signal called TVDDEN.
When using the "Self Powered Target" option, QuickWriter provides two ways of determining when
to activate your target circuits power supply.
1. Operator Notification for manual activation/deactivation.
2. Hardware Control Signal (TVDDEN) for electronic activation/deactivation (automation).
Operator Notification
Hardware Control Signal (TVDDEN)
When the circuit supplies its own power, we have to be concerned with voltage sequence and
timing requirements of the MCU.
The programming algorithms for some devices require that the device's VDD be enabled/disabled
several times during a
When QuickWriter is ready for the target's power supply to be turned on or off, it will display a
notification dialog that includes the current voltage reading. Once the required voltage condition
is met, this dialog will automatically close and QuickWriter will continue operation.
If for some reason the voltage condition can not be met, the operator can use the ABORT button
to close the dialog. Using the abort button will cause QuickWriter to discontinue the operation
and display a relevant error message.
TVDDEN can be used to control your target's power supply (through an appropriate driver
circuit). QuickWriter's TVDDEN signal will help automate control of the target's power and make
it possible to meet the required timing for power sequence specifications.
TVDDEN is a new signal, available on QuickWriter's 26 pin interface connector. It is not
available in the standard ICSP cable included with the unit. You may need to customize your in-
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