MC6844

Interface

Direct Memory Access Controller 1MHz, DIP-40

Symbol

40 pins

Schematic symbol for MC6844

Units: 1
Kind: part
Grid: on 1.27 mm

Footprint

40 pads

Footprint for MC6844

Library: Package_DIP
Mount: through_hole
Courtyard: 17.34 × 51.31 mm
Link: exact

3D model

STEP

Package_DIP_DIP-40_W15.24mm

15.49 × 50.80 × 6.98 mm

1.2 MB STEP

Library: Package_DIP_DIP-40
Link: exact

Pins and pads

Every pin on the symbol has a pad on the footprint.

Pin	Name	Type	Pad
1	VSS	power_in	1
2	~{CS}/Tx_AKB	bidirectional	2
3	R/~{W}	bidirectional	3
4	A0	bidirectional	4
5	A1	bidirectional	5
6	A2	bidirectional	6
7	A3	bidirectional	7
8	A4	bidirectional	8
9	A5	output	9
10	A6	output	10
11	A7	output	11
12	A8	output	12
13	A9	output	13
14	A10	output	14
15	A11	output	15
16	A12	output	16
17	A13	output	17
18	A14	output	18
19	A15	output	19
20	VCC	power_in	20
21	D7	bidirectional	21
22	D6	bidirectional	22
23	D5	bidirectional	23
24	D4	bidirectional	24
25	D3	bidirectional	25
26	D2	bidirectional	26
27	D1	bidirectional	27
28	D0	bidirectional	28
29	Tx_RQ3	input	29
30	Tx_RQ2	input	30
31	Tx_RQ1	input	31
32	Tx_RQ0	input	32
33	~{IRQ}/~{DEND}	output	33
34	~{Tx_STB}	output	34
35	Tx_AKA	output	35
36	~{DRQ2}	output	36
37	~{DRQ1}	output	37
38	DGRNT	input	38
39	~{RESET}	input	39
40	E	input	40

Provenance

Source: kicad-symbols
Credit: KiCad Libraries Contributors
Licence: CC-BY-SA-4.0-with-KiCad-exception
Link method: exact
Cross-check: passed