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CD22M3494 Scheda tecnica(PDF) 6 Page - Intersil Corporation |
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CD22M3494 Scheda tecnica(HTML) 6 Page - Intersil Corporation |
6 / 7 page 70 Pin Descriptions SYMBOL 40 LEAD PDIP PIN NO. 44 LEAD PLCC PIN NO. DESCRIPTION MQ SQ POWER SUPPLIES VDD 40 44 44 Positive Supply VSS 16 18 17 Negative Supply (Digital) VEE 20 22 22 Negative Supply (Analog) ADDRESS AX0 - AX3 5, 22, 23 and 4 5, 24, 25 and 4 X Address Lines. These pins select one of the 16 rows of switches. See the Truth Table for the valid addresses. AY0 - AY2 24, 25 and 2 26, 27 and 2 Y Address Lines. These pins select one of the 8 columns of switches. See the Truth Table for the valid addresses. CONTROL DATA 38 42 DATA Input determines the state of the addressed switch. A high or one will close the switch. A low or zero will open the switch. STROBE 18 20 STROBE Input enables the action defined by the DATA and ADDRESS Inputs. A low or zero results in no action. The ADDRESS Input must be stable before the STROBE Input goes to the active high level. The DATA Input must be stable on the failing edge of the STROBE. RESET 3 3 MASTER RESET. A high or one on this line opens all switches. CS 36 40 39 CHIP SELECT. Device is selected when CS is at a high level, allows the crosspoint array to be cascaded for matrix expansion. INPUTS/OUTPUTS X0 - X5 X6 - X11 X12 - X15 33 - 28, 8 - 13, 27, 26, 6, 7 37 - 32 9 - 14, 31, 30, 7, 8 Analog or Digital Inputs/Outputs. These pins are the rows X0 - X15. Y0 - Y7 I/O 35, 37, 39, 1, 21, 19, 17 and 15 40, 41, 43, 1, 23, 21, 19 and 18 Analog or Digital Inputs/Outputs. These pins are the columns Y0 - Y7. Pinouts CD22M3494E (PDIP) TOP VIEW CD22M3494MQ (PLCC) (MITEL LEAD COMPATIBLE) TOP VIEW CD22M3494SQ (PLCC) (SGS LEAD COMPATIBLE) TOP VIEW DATA Y2 Y1 Y0 X1 X0 NC X3 AX2 Y4 AY0 AX1 AY1 X13 X12 X5 X4 CS VDD X2 Y6 STROBE Y5 X11 X10 X7 X6 X15 X14 AX0 NC Y7 X8 Y3 AY2 RESET X9 AX3 VSS VEE 13 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 33 34 35 36 37 38 39 40 32 31 30 29 24 25 26 27 28 21 22 23 40 65 3 2 1 44 43 42 41 4 18 19 20 21 22 23 24 25 26 27 28 7 17 16 15 12 13 14 9 10 11 8 38 37 39 35 34 33 36 31 30 29 32 Y0 X1 X0 NC X3 X13 X12 X5 X4 X2 NC X11 X10 X7 X6 X15 X14 NC Y7 X8 X9 NC 7 17 16 15 12 13 14 9 10 11 8 38 37 39 35 34 33 36 31 30 29 32 X1 X0 NC X3 X13 X12 X5 X4 X2 NC CS 20 18 19 21 22 23 24 25 26 27 28 5 6 4 3 2 1 44 43 42 41 40 X11 X10 X7 X6 X15 X14 NC X8 X9 NC V SS CD22M3494 |
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