ICM7228DIJI Intersil Corporation, ICM7228DIJI Datasheet
ICM7228DIJI
Available stocks
Related parts for ICM7228DIJI
ICM7228DIJI Summary of contents
Page 1
... Display Integrity is Compromised Ordering Information PART NUMBER DATA ENTRY PROTOCOL ICM7228AIPI Sequential ICM7228BIPI Sequential ICM7228CIPI Random ICM7228DIPI Random ICM7228AIJI Sequential ICM7228BIJI Sequential ICM7228CIJI Random ICM7228DIJI Random ICM7228AIBI Sequential ICM7228BIBI Sequential ICM7228CIBI Random ICM7228DIBI Random ICM7228AMJI883B Sequential ICM7228BMJI883B Sequential ICM7228CMJI883B Random ICM7228DMJI883B Random CAUTION: These devices are sensitive to electrostatic discharge ...
Page 2
Pinouts ICM7228A (CERDIP, PDIP, SOIC) COMMON ANODE TOP VIEW c SEG 1 e SEG SEG DP 4 ID6 (HEXA/CODE B) 5 ID5 (DECODE) 6 ID7 (DATA COMING) 7 WRITE 8 MODE 9 ID4 (SHUTDOWN) 10 ID1 11 ...
Page 3
Functional Block Diagram ICM7228A, ICM7228B ID0 - ID7 ID4 - ID7 8 INPUT CONTROL DATA INPUTS MODE DECODE CONTROL LOGIC HEXA/CODE B WRITE ADDRESS 8 8-BYTE STATIC 8 1 RAM ADDRESS, DIGIT HEXADECIMAL/ ...
Page 4
Absolute Maximum Ratings Supply Voltage ( ...
Page 5
Electrical Specifications V = +5.0V 10 INDUSTRIAL TEMPERATURE RANGE, IPI, IJI, LBI DEVICES (Continued) PARAMETER Display Scan Rate, f Per Digit MUX Inter-Digit Blanking Time, t IDB Logical “1” Input Voltage, V Three Level Input: Pin 9 INH ...
Page 6
Electrical Specifications V = +5.0V 10 MILITARY TEMPERATURE RANGE, MJI, DEVICES (Continued) PARAMETER Digit Drive Current, I Common Anode, V DIG V OUT Common Cathode OUT Digit Leakage Current, I Shutdown Mode, V DLK Common Anode, ...
Page 7
Timing Diagrams t MS MODE t WL WRITE t DS INPUT VALID DATA FIGURE 1. ICM7228A/B WRITE CYCLE DIGIT ADDRESS DAO-DAZ WRITE DATA INTERDIGIT BLANKING INTERNAL SIGNAL TYPICAL DIGITS OUTPUT PULSES FIGURE ...
Page 8
Typical Performance Curves 300 200 100 0 0 1.0 2.0 3.0 V (V) DIG FIGURE 7. COMMON CATHODE DIGIT DRIVER I TABLE 1. ICM7228A PIN ASSIGNMENTS AND DESCRIPTIONS PIN NO. NAME FUNCTION 1 SEG c Output 2 SEG e 3 ...
Page 9
TABLE 1. ICM7228A PIN ASSIGNMENTS AND DESCRIPTIONS (Continued) PIN NO. NAME FUNCTION 15 DIGIT 1 Output 16 DlGlT 2 17 DIGIT 5 18 DlGlT Supply DD 20 DIGIT 4 Output 21 DlGlT 7 22 DlGlT 6 23 ...
Page 10
TABLE 2. ICM7228B PIN ASSIGNMENTS AND DESCRIPTIONS (Continued) PIN NO. NAME FUNCTION 14 ID3 Input 15 DP Output 16 SEG a 17 SEG b 18 SEG Supply DD 20 SEG c Output 21 SEG e 22 SEG ...
Page 11
TABLE 3. ICM7228C PIN ASSIGNMENTS AND DESCRIPTIONS (Continued) PIN NO. NAME FUNCTION 20 DIGIT 4 Output 21 DlGlT 7 22 DlGlT 6 23 DIGlT 3 24 SEG f Output 25 SEG d 26 SEG g 27 SEG ...
Page 12
Detailed Description System Interfacing and Data Entry Modes, ICM7228A and ICM7228B The ICM7228A/B devices are compatible with the architec- tures of most microprocessor systems. Their fast switching characteristics makes it possible to access them as a memory mapped I/O device ...
Page 13
TABLE 5. DIGITS ADDRESS, ICM7228A/B INPUT DATA LINES 1D2 lD2 lD0 System Interfacing, ICM7228C and ICM7228D ...
Page 14
DP FIGURE 11. DIGITS SEGMENT ASSIGNMENTS The No Decode mode of the ICM7228A and ICM7228B allows the direct segment-by-segment control of all 64 seg- ments driven by the device. In the No Decode ...
Page 15
V DD DIGIT STROBE P INTERDIGIT BLANKING SHUTDOWN NOTE: When SHUTDOWN goes low INTERDIGIT BLANKING also stays low. FIGURE 12A. DIGIT DRIVER SEGMENT DATA INTERDIGIT BLANKING SHUTDOWN FIGURE 12B. SEGMENT DRIVER FIGURE 12. COMMON ANODE DISPLAY DRIVERS ...
Page 16
SEGMENT 100 OUTPUT ICM7228C 300 DIGIT OUTPUT FIGURE 16. DRIVING HIGH CURRENT DISPLAY, COMMON CATHODE ICM7228B/D TO COMMON CATHODE DISPLAY Three Level Input, ICM7228C ...
Page 17
... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...