A6628SEDT Datasheet – IC For Epson printer – Allegro

Part Number : A6628SEDT

Function : Stepper Motor Driver for EPSON Stylus Pro 3800/3800C/3850

Package : PLCC-44 Type

Manufacturers : Allegro

Image :



EPSON Stylus Pro 3800/3800C/3850 are large size color inkjet printers that support up to A2 (17”) sized cut-sheet paper.

1. F-Mach (180N x 8-column) print head
2. Maximum print resolution (dpi): 2880 x 1440, Minimum dot: 3.5pl MSDT
3. Superior color and monochrome reproducibility with eight colors HCD2 + K3 ink system, consisting of 4 basic colors (YMCK) with 2 complementary colors and 2 complementary blacks
4. 80ml-size (injection volume) new ink cartridge
5. Automatic switching between black ink modes; Photo black and Matte black. Requires no user intervention, and ink used during the conversion is remarkably reduced.


A6628SEDT pinout

A6615SEDTR pinout

A6628SEDT Datasheet

A6628SEDT Datasheet

Reference Site : http://www.cnczone.com/forums/stepper-motors-drives/98558-allegro-a6615sed-stepper-motor-driver.html

Reference PDF : http://blackred.spb.ru/tech/print/StylusPro3800_service_manual.pdf

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CH340 Datasheet – USB Convert Printer Port Chip

Part Number : CH340

Function : USB Convert Printer Port Chip

Package : SSOP-20

Manufacturers : Jiangsu QinHeng

Pinouts :

CH340 datasheet


Description :

CH340 is a USBbus convert chip and it can realize USB convert to serial interface, USB convert to IrDA infrared or USB convert to printer interface.

In serial interface mode, CH340 supplies common MODEM liaison signal, used to enlarge asynchronous serial interface of computer or upgrade the common serial device to USBbus directly.

More detail about USB convert to printer interface please referring to the second manual CH340DS2. In infrared mode, add infrared transceiver to CH340 can compose USB infrared adapter, realize SIR nfrared communication.


1. Full speed USB device interface, conforms to USB Specification Version 2.0, only needs crystal and
capacitance external.

2. Standard USB print interface, used to upgrade the original parallel printer, compatible with the
relative USB criterion.

3. Compatible with Windows operation system, drive program is not need in Windows 2000 and XP,
the application program is totally compatible.

Other data sheets within the file : CH340S, CH340R, CH340T

CH340 Datasheet PDF Download

CH340 pdf