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Group 42-Sells Out! - The Information Archive
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Group 42 Sells Out (Group 42) (1996).iso
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cell-3.txt
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1995-10-12
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PART III. TYPES OF NAMS
NAM Types Used in Cellular Phones
NAM- Number Assignment Module - A 32 word by 8 bit PROM
The NAM contains all the information that can be programmed to the phone
directly from the handset. (i.e. SIDH,MIN,LOCK-CODE,etc.).
All phones except NEC will accept tri-state NAMs. NEC requires an open
collector NAM. Fujitsu phones will accept either open collector or tri-
state NAMs.
Brand Qualifications: Fujitsu and Alpine phones will not operate properly
with any Harris Brand NAM or with any Signetics brand NAMs with a part
number NOT ending with an "A". TI NAMs must not be used in GE Star models.
Panasonic has suggested only TI NAMs should be used in their phones. NAMs
are available in ceramic (F) or plastic encapsulation (N).
BRAND OPEN COL. TRI-STATE OPEN COL. TRI-STATE
=============================================================================
Signetics 82S23 82S123
Texas Inst. 74S188 74S288 TBP18SA030 TBP18S030
AMD AM27LS18 AM27LS19 AM27S18 AM27S19
Texas Inst. TBP38SA030 TBP38S030
Harris HM7602 HM7603
MMI 53/6330 53/6331
MMI 53/63S080 53/63S081
NSC DM54S188 DM54S288 DM74S188
NSC DM82S23 DM82S123
Motorola This is for a special NAM used in some Motorolas. Requires
an adapter.
Fujitsu MB7056 MB7051
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