? categorized for color hcms-2701/-2703 hcms-2711/-2713 hcms-2721/-2723 typical applications ? telecommunications equipment ? instrumentation ? medical instruments ? business machines cmos 5 x 7 small alphanumeric displays technical data features ? on-board low power cmos ics integrated shift registers with constant current led drivers ? wide operating temperature range -40 c to +85 c ? three package styles 1 row of 4 characters 1 row of 8 characters 2 rows of 8 characters ? five led colors standard red high efficiency red orange yellow high performance green ? 5 x 7 led matrix displays full ascii character set ? character height 3.8 mm (0.15 inch) ? long viewing distance 2.6 metres (8.6 feet) ? wide viewing angle x axis = 30 y axis = 55 ? categorized for luminous intensity hcms-270x series hcms-271x series hcms-272x series device selection guide part number display package style led color HCMS-2700 1 row of 4 characters standard red -2701 yellow -2702 her -2703 green -2704 orange hcms-2710 1 row of 8 characters standard red -2711 yellow -2712 her -2713 green -2714 orange hcms-2720 2 rows of 8 characters standard red -2721 yellow -2722 her -2723 green -2724 orange
2 description the hcms-270x series are four character 5x7 dot matrix alpha- numeric displays in a dual in-line 12 pin plastic package. the on- board cmos ics form a 28 bit shift register. the hcms-271x series are eight character 5x7 dot matrix alpha- numeric displays in a dual in-line plastic package with 26 pin positions. the on-board cmos ics form a 56 bit shift register. the hcms-272x series are sixteen character 5x7 dot matrix alphanumeric displays. each device is assembled by enclosing two hcms-271x devices in a common lens assembly forming two rows of eight characters. the plastic package has two dual in- line rows of 26 pin positions for a total of 52 pin positions. the two on-board cmos ic 56 bit shift registers for each row are electrically separate from each other. the on-board cmos ics form serial input shift registers with constant current output led row drivers. decoded column data is clocked into the shift registers for each refresh cycle. full character display is accomplished with external column strobing at a refresh rate of 100 hz or faster. all of these display devices may be end stacked in the x-direction to form a string of characters of desired length. 0.25 (0.010) 3.71 (0.146) 2.11 (0.083) 5.38 (0.212) 2.54 0.13 (0.100 0.005) typ. non accum. pin 1 identifier luminous intensity category color bin date code part number ref. 0.51 (0.020) dia. 4.44 (0.175) 17.73 (0.698) max. max. 10.16 (0.400) 5.08 (0.200) hcms-270x yyww x z ref. see note 3 see note 3 2.54 (0.100) 7.62 (0.300) 1.27 (0.050) 0.51 (0.020) notes: 1. dimensions in millimetres/inches. 2. unless otherwise specified the tolerance on all dimensions is 0.38mm (0.015"). 3. characters are centered with respect to lead within 0.13mm (0.005"). 4. lead material: solder plated copper alloy. 123 4 hcms-270x pin
1
2
3
4
5
6 function
column 1
column 2
column 3
column 4
column 5
int. connect* pin
7
8
9
10
11
12 function
data out
v b
v dd
clock
ground
data in
* do not connect or use. package dimensions
3 hcms-271x 19.81 (0.780) max. 35.56 (1.400) max. 9.65 (0.380) row b row a see note 3 see note 3 3.72 (0.146) ref. 4.82 (0.190) 2.11 (0.083) ref. 4.44 (0.175) luminous intensity category color bin date code part number yyww x z hcms-272x 5.08 0.127 (0.200 .005) 2.54 0.13 (0.100 0.005) typ. non accum. 0.51 (0.020) dia. 0.51 (0.020) pin 1a identifier 5.38 (0.212) 1.27 (0.050) 2.54 (0.100) 2.03 (0.080) 5.08 (0.200) 0.25 (0.010) pin 13a pin 14a 7.62 (0.300) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 notes: 1. dimensions are in millimetres/inches. 2. unless otherwise specified, tolerance is 0.38mm (0.015"). 3. characters are positioned with respect to leads within 0.13mm (0.005"). 4. lead material is solder plated copper alloy. hcms-272x pin
1
2
3
4
5
6
7
8
9
10
11
12
13 function
no pin
column 2
no pin
column 4
no pin
int. connect*
no pin
column 1
no pin
column 3
no pin
column 5
int. connect* pin
14
15
16
17
18
19
20
21
22
23
24
25
26 function
data out
v b (5-8)
no pin
clock
ground
no pin
no pin
int. connect*
v b (1-4)
v dd
no pin
ground
data in
* do not connect or use. 4.44 (0.175) 3.71 (0.146) 2.11 (0.083) ref. pin 1 identifier 35.56 (1.400) max. 10.16 (0.400) max. 0.51 (0.020) luminous intensity category color bin date code dia. part number yyww x z hcms-271x 5.08 (0.200) 5.38 (0.212) 7.62 (0.300) 1.27 (0.050) 2.54 0.13 (0.100 0.005) typ. non accum. ref. see note 3 see note 3 2.54 (0.100) 0.25 (0.010) 0.51 (0.020) notes: 1. dimensions in millimetres/inches. 2. unless otherwise specified the tolerance on all dimensions is 0.38mm (0.015"). 3. characters are centered with respect to lead within 0.13mm (0.005"). 4. lead material: solder plated copper alloy. 1 2 3 4 5 6 7 8 pin
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12a
13a
14a
15a
16a
17a
18a
19a
20a
21a
22a
23a
24a
25a
26a function
no pin
column 2
no pin
column 4
no pin
int. connect*
no pin
column 1
no pin
column 3
no pin
column 5
int. connect*
data out
v b (13-16)
no pin
clock
ground
no pin
no pin
int. connect*
v b (9-12)
v dd
no pin
ground
data in
pin
1b
2b
3b
4b
5b
6b
7b
8b
9b
10b
11b
12b
13b
14b
15b
16b
17b
18b
19b
20b
21b
22b
23b
24b
25b
26b function
no pin
column 2
no pin
column 4
no pin
int. connect*
no pin
column 1
no pin
column 3
no pin
column 5
int. connect*
data out
v b (5-8)
no pin
clock
ground
no pin
no pin
int. connect*
v b (1-4)
v dd
no pin
ground
data in
* do not connect or use internal
connection pins.
4 absolute maximum ratings supply voltage v dd to ground ........................................ -0.3 v to 7.0 v data input, clock, data output, v b .................................... -0.3 v to v dd column input voltage, v col ............................................. -0.3 v to v dd free air operating temperature, t a ............................. -40 c to +85 c storage temperature, t s ............................................ -55 c to +100 c maximum allowable package power dissipation, p d at 55 c [1,2] hcms-270x ........................................................................... 0.837 w hcms-271x ........................................................................... 1.674 w hcms-272x (per 8 character row) ........................................ 1.674 w (total per package ........................................... 3.348 w) maximum solder temperature 1.59 mm (0.063") below seating plane, t < 5 sec ..................... 260 c esd protection @ 1.5 k w , 100 pf ....................... v z = 4 kv (each pin) notes: 1. maximum allowable power dissipation is derived from v dd = 5.25 v and v b = 2.4 v, v col = 3.5 v, 20 leds illuminated per character, 20% on-time duty factor. 2. see figure 1 for power derating. thermal resistance from device v dd pin(s) to ambient through the pc board mounting assembly is assumed to be r q pc-a 35 c/w per device for the hsms-270x, 17.5 c/w per device for the hcms-271x, and 17.5 c/w per row for the hcms-272x. recommended operating conditions, t a = -40 c to +85 c description symbol minimum nominal maximum unit supply voltage v dd 4.75 5.0 5.25 v data out current, low state i ol 1.6 ma data out current, high state i oh -0.5 ma column input voltage v col 2.75 3.0 3.5 v setup time t setup 10 ns hold time t hold 25 ns clock pulse width high t wh(clock) 50 ns clock pulse width low t wl(clock) 50 ns clock high to low transition t thl 200 ns clock frequency f clock 5 mhz electrical characteristics, -40 c to +85 c parameter symbol test conditions min. typ. [1] max. unit supply current, dynamic [2] i ddd v dd = 5.25 v hcms-270x f clock = 5 mhz 6.2 7.8 ma hcms-271x v b = 0.4 v 12.4 15.6 hcms-272x (per row) 15.6 15.6 supply current, static [3] hcms-270x i ddsoff v dd = 5.25 v 1.8 2.6 ma hcms-271x v b = 0.4 v 3.6 5.2 hcms-272x (per row) 3.6 5.2 hcms-270x i ddson v dd = 5.25 v 2.2 6.0 hcms-271x v b = 2.4 v 4.4 12.0 hcms-272x (per row) 4.4 12.0
5 electrical characteristics, -40 c to +85 c (cont'd.) parameter symbol test conditions min. typ. [1] max. unit column input current i col v dd = 5.25 ma hcms-270x v col = 3.5 v 335 410 hcms-271x v b = 2.4 v 670 820 hcms-272x (per row) 670 820 input logic high: data, v b , clock v ih v dd = 4.75 v 2.0 v input logic low: data, v b , clock v il v dd = 5.25 v 0.8 v input current: v dd = 5.25 v m a data 0 < v i < 5.25 v -10 +1 clock hcms-270x i i -10 hcms-271x v dd = 5.25 v -20 +1 hcms-272x (per row) 0 < v i < 5.25 v -20 v b hcms-270x -40 hcms-271x v dd = 5.25 v -80 0 hcms-272x (per row) 0 < v b < 5.25 v -80 data out voltage v oh v dd = 4.75 v 2.4 4.2 v i oh = -0.5 ma i col = 0 ma v ol v dd = 5.25 v 0.2 0.4 i oh = 1.6 ma i col = 0 ma v dd = 5.0 v power dissipation [4] v col = 3.5 v per package 17.5% df hcms-270x p d v b = 2.4 v 451 mw hcms-271x 15 leds on 902 hcms-272x (per row) per character 902 thermal resistance [5] ic junction-to-pin (v dd ) hcms-270x r q j-pin 50 c/w hcms-271x 25 hcms-272x (per row) 25 notes: 1. all typical values at v dd = 5.0 v, t a = 25 c. 2. i dd dynamic is the ic current while clocking column data through the on-board shift register at a clock frequency of 5 mhz. 3. i dd static is the ic current after column data is loaded and not being clocked through the on-board shift register. 4. four, eight, or sixteen characters are illuminated with a typical ascii character composed of 15 dots per character. 5. the ic junction temperature t j (ic), is: t j (ic) = (p d )(r q j-pin +r q pc-a ) + t a where: p d is the total power into the display for hcms-270x and hcms-271x, and the total power into one row of an hcms-272x display. p d = p(i ddson ) + p(i col ) p(i ddson ) = i ddson *v dd p(i col ) = 5*i col *v col *n/35*df n = quantity of led dots illuminated per character. df = led on-time duty factor. the ic junction temperature rise above the temperature of the v dd pin(s), d t j (ic), is: d t j (ic) = (p d )(r q j-pin ) the ic junction temperature, t j (ic), must not exceed +125 c.
6 optical characteristics at t a = 25 c standard red HCMS-2700/-2710/-2720 description test conditions symbol min. typ. unit peak luminous intensity per led v dd = 5.0 v, v col = 3.5 v (digit average) [1,5] v b = 2.4 v, t i = 25 c [3] i v 105 200 m cd dominant wavelength [4] l d 640 nm peak wavelength l peak 65 nm yellow hcms-2701/-2711/-2721 description test conditions symbol min. typ. unit peak luminous intensity per led v dd = 5.0 v, v col = 3.5 v (digit average) [1,5] v b = 2.4 v, t i = 25 c [3] i v 400 750 m cd dominant wavelength [2,4] l d 585 nm peak wavelength l peak 583 nm high efficiency red hcms-2702/-2712/-2722 description test conditions symbol min. typ. unit peak luminous intensity per led v dd = 5.0 v, v col = 3.5 v (digit average) [1,5] v b = 2.4 v, t i = 25 c [3] i v 400 1430 m cd dominant wavelength [4] l d 625 nm peak wavelength l peak 635 nm high performance green hcms-2703/-2713/-2723 description test conditions symbol min. typ. unit peak luminous intensity per led v dd = 5.0 v, v col = 3.5 v (digit average) [1,5] v b = 2.4 v, t i = 25 c [3] i v 400 1550 m cd dominant wavelength [2,4] l d 574 nm peak wavelength l peak 568 nm orange hcms-2704/-2714/-2724 description test conditions symbol min. typ. unit peak luminous intensity per led v dd = 5.0 v, v col = 3.5 v (digit average) [1,5] v b = 2.4 v, t i = 25 c [3] i v 400 1400 m cd dominant wavelength [4] l d 602 nm peak wavelength l peak 600 nm notes: 1. these displays are categorized for luminous intensity with the intensity category designated by a letter code located on the side of the display package. 2. yellow and high performance green devices are categorized for color with the color category designated by a number code on the side of the display package. 3. t i refers to the initial device temperature immediately prior to the light measurement. 4. dominant wavelength, l d , is derived from the cie chromaticity diagram and is that single wavelength which defines the led color. 5. the luminous sterance of the individual led pixels may be calculated using the following equations: l v (cd/m 2 ) = i v (candela)*df/a(meter 2 ) l v (footlamberts) = p i v (candela)*df/a(foot 2 ) where: a = led pixel area = 3.32x10 -8 m 2 or 3.57x10 -7 ft 2 df = led on-time duty factor.
7 switching characteristics, t a = -40 c to +85 c figure 2. relative luminous intensity vs. display pin temperature. parameter condition typ. max. units f clock clock rate 5 mhz t plh , t phl c l = 15 pf 105 ns propagation delay r l = 2.4 k w clock to data out t off v b (0.4 v) to display off 4 5 m s t on v b (2.4 v) to display on 1 2 figure 1. maximum allowable power dissipation vs. ambient temperature as a function of thermal resistance ic junction-to- ambient, r q j-a . operation at 85 c assumes a thermal resistance for the printed circuit board of r q pc-a = 35 c/w per device for the hcms- 270x, 17.5 c/w per device for the hcms-271x, and 17.5 c/w per row for the hcms-272x. figure 4. relative column current, i col , vs. ambient temperature. figure 3. peak column current vs. column voltage.
8 electrical description each display device contains four or eight 5x7 led dot matrix characters and two or four cmos integrated circuits, as shown in figure 5. the cmos integrated circuits form an on-board 28 bit or 56 bit serial-in-parallel-out shift register that will accept standard ttl logic levels. the data input pin is connected to bit position 1 and the data output pin is connected to bit position 28 (56). the shift register outputs control constant current sinking led row drivers. the nominal current sink per led driver is 11 ma. a logic 1 stored in the shift register enables the corresponding led row driver and a logic 0 stored in the shift register disables the correspond- ing led row driver. the electrical configuration of these cmos ic alphanumeric displays allows for an effective interface to a display controller circuit that supplies decoded character information. the row data for a given column (one 7 bit byte per character) is loaded (bit serial) into the on-board 28 (56) bit shift register with high to low transitions of the clock input. to load decoded character infor- mation into the display, column data for character 4 (8) is loaded first and the column data for character 1 is loaded last in the following manner. the 7 data bits for column 1, character 4 (8), are loaded into the on-board shift register. next, the 7 data bits for column 1, character 3 (7), are loaded into the shift register, shifting the character 4 (8) data bits over one character position. this process is repeated for the other 2 (6) characters until all 28 (56) bits of column data (four or eight 7 bit bytes of character column data) are loaded into the on-board shift register. then the column 1 input, v col , pin 1, is energized to illuminate column 1 in all 4 (8) characters. this process is repeated for columns 2, 3, 4, and 5. all of the v col inputs should be at logic low to insure the display is off when loading data. the display will be blanked when the blanking input v b is at logic low regardless of the outputs of the shift register or whether one of the v col inputs is energized. refer to application note 1016 using the hdsp-2000 alphanu- meric display family for drive circuit information. figure 5. block diagram of an hcms-27xx series led alphanumeric display.
9 esd susceptibility the hcms-27xx series displays have an esd susceptibility ratings of class 3 per dod- std-1686 and class b per mil- std-883c. it is recommended that normal cmos handling precautions be observed with these devices. soldering and post solder cleaning for information on soldering and post-solder cleaning of led displays, see application note 1027: soldering led components. contrast enhancement when used with the proper contrast enhancement filters, the hcms-27xx series displays are readable in bright ambients. for information on contrast enhance- ment, refer to application note 1015 contrast enhancement techniques for led displays and application note 1029 luminous contrast and sun- light readability of the hdsp- 238x series alphanumeric displays for military applications .
www.semiconductor.agilent.com data subject to change. copyright ? 1999 agilent technologies, inc. obsoletes 5091-1095e 5964-6375e (11/99)
|
