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<ibis I/O Buffer Information Specification>
− Component −

			
[Component] 7403398 MC452
|
Si_location Pin | Optional subparameters to give measurement
Timing_location Die | location positions


[Manufacturer] NoName Corp.


[Package]
| variable typ min max
R_pkg 250.0m 225.0m 275.0m
L_pkg 15.0nH 12.0nH 18.0nH
C_pkg 18.0pF 15.0pF 20.0pF


[Pin] signal_name model_name R_pin L_pin C_pin
|
1  RAS0#  Buffer1 200.0m 5.0nH 2.0pF
2  RAS1#  Buffer2 209.0m NA 2.5pF
3  EN1#   Input1  NA 6.3nH NA
4  A0     3-state
5  D0     I/O1
6  RD#    Input2  310.0m 3.0nH 2.0pF
7  WR#    Input2
8  A1     I/O2
9  D1     I/O2
10 GND    GND     297.0m 6.7nH 3.4pF
11 RDY#   Input2
12 GND    GND     270.0m 5.3nH 4.0pF
| .
| .
| .
18 Vcc3   POWER
19 NC NC
20 Vcc5   POWER   226.0m NA 1.0pF
21 BAD1   Series_switch1   | Illegal assignment
22 BAD2   Series_selector1 | Illegal assignment


[Package Model] QS-SMT-cer-8-pin-pkgs


[Alternate Package Models]
|
208-pin_plastic_PQFP_package-even_mode | Descriptive names are shown
208-pin_plastic_PQFP_package-odd_mode
208-pin_ceramic_PQFP_package-even_mode
208-pin_ceramic_PQFP_package-odd_mode
|
[End Alternate Package Models]


[Pin Mapping] pulldown_ref pullup_ref gnd_clamp_ref power_clamp_ref ext_ref
|
1 GNDBUS1 PWRBUS1 | Signal pins and their associated
2 GNDBUS2 PWRBUS2 | ground, power and external
| | reference connections
3 GNDBUS1 PWRBUS1 GNDCLMP PWRCLAMP
4 GNDBUS2 PWRBUS2 GNDCLMP PWRCLAMP
5 GNDBUS2 PWRBUS2 NC PWRCLAMP REFBUS1
6 GNDBUS2 PWRBUS2 GNDCLMP NC
7 GNDBUS2 PWRBUS2 GNDCLMP NC REFBUS2
| | Some possible clamping
| | connections are shown above
| . | for illustration purposes
| .
11 GNDBUS1 NC | One set of ground connections.
12 GNDBUS1 NC | NC indicates no connection to
13 GNDBUS1 NC | power bus.
| .
21 GNDBUS2 NC | Second set of ground connections
22 GNDBUS2 NC
23 GNDBUS2 NC
| .
31 NC PWRBUS1 | One set of power connections.
32 NC PWRBUS1 | NC indicates no connection to
33 NC PWRBUS1 | ground bus.
| .
41 NC PWRBUS2 | Second set of power connections
42 NC PWRBUS2
43 NC PWRBUS2
| .
51 GNDCLMP NC | Additional power connections
52 NC PWRCLMP | for clamps
|
| .
71 NC REFBUS1 | External reference connections
72 NC REFBUS2
|
| The following [Pin] list corresponds to the [Pin Mapping] shown above.
|


[Pin] signal_name model_name R_pin L_pin C_pin
|
1  OUT1      output_buffer1       | Output buffers
2  OUT2      output_buffer2       |
3  IO3       io_buffer1           | Input/output buffers
4  IO4       io_buffer2           |
5  SPECIAL1  ref_buffer1          | Buffers with POWER CLAMP but no
6  SPECIAL2  io_buffer_term1      | GND CLAMP I-V tables; two use
7  SPECIAL3  ref_buffer2          | external reference voltages
11 VSS1      GND
12 VSS1      GND
13 VSS1      GND
21 VSS2      GND
22 VSS2      GND
23 VSS2      GND
31 VCC1      POWER
32 VCC1      POWER
33 VCC1      POWER
41 VCC2      POWER
42 VCC2      POWER
43 VCC2      POWER
51 VSSCLAMP  GND                  | Power connections for clamps
52 VCCCLAMP  POWER                |
71 V_EXTREF1 POWER                | External reference voltage pins
72 V_EXTREF2 POWER                |


[Diff Pin] inv_pin vdiff tdelay_typ tdelay_min tdelay_max
|
3  4  150mV -1ns 0ns -2ns
| For Input, tdelay_typ/min/max ignored
| For Output, vdiff ignored
|
7  8  0V 1ns NA NA
16 15 200mV 1ns
| For Input, tdelay_typ ignored
| For Output, vdiff ignored and tdelay_min = 0ns and tdelay_max = 1ns
| For I/O, tdelay_min = 0ns and tdelay_max = 1ns
|
9  10 NA NA NA NA
22 21 NA NA
| For Input, vdiff = 200 mV
| For Output, tdelay_typ/min/max = 0ns
| For I/O, vdiff = 200 mV and tdelay_typ/min/max = 0ns
|
20 19 0V NA
| For Output, vdiff ignored and tdelay_typ/min/max = 0ns
| For I/O, tdelay_typ/min/max = 0ns


[Series Pin Mapping] pin_2 model_name function_table_group
|
2  3  CBTSeries 1 | Four independent groups
5  6  CBTSeries 2
9  8  CBTSeries 3
12 11 CBTSeries 4
|
22 23 CBTSeries 5 | Straight through path
25 26 CBTSeries 5
22 26 CBTSeries 6 | Cross over path
25 23 CBTSeries 6
|
32 33 Fixed_series | No group needed


[Series Switch Groups]
| Function Group States
On 1 2 3 4 / | Default setting is all switched On
|
Off 1 2 3 4 / | All Off setting
On  1 / | Other possible combinations below
On  2 /
On  3 /
On  4 /
On  1 2 /
On  1 3 /
On  1 4 /
On  2 3 /
On  2 4 /
On  3 4 /
On  1 2 3 /
On  1 2 4 /
On  1 3 4 /
On  2 3 4 /
| Off 4 / | The last four lines above could have been replaced
| Off 3 / | with these four lines with the same meaning.
| Off 2 /
| Off 1 /
|
On  5 / | Crossbar switch straight through connection
On  6 / | Crossbar cross over connection
Off 5 6 / | Crossbar open switches

			



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